* Working sample 5.10 kernel configuration for an IMX6 board?
@ 2021-07-08 7:43 Matthias Klein
2021-07-08 15:21 ` Ahmed S. Darwish
2021-07-08 15:25 ` Ahmed S. Darwish
0 siblings, 2 replies; 7+ messages in thread
From: Matthias Klein @ 2021-07-08 7:43 UTC (permalink / raw)
To: linux-rt-users
Hello together,
I am trying to get the PREEMPT_RT patch to run on a Ka-Ro TX6U-8033 module (800MHz i.MX6U7).
The kernel boots and basically works. But I have measurements with cyclictest with maximum latency of up to 2..3 milliseconds with only 100000 runs.
I would like to compare my configuration in a first step with a working IMX6 configuration which has no such outliers.
Can someone send me such a configuration?
What should be the maximum latency with kernel 5.10?
Many greetings,
Matthias Klein
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Working sample 5.10 kernel configuration for an IMX6 board?
2021-07-08 7:43 Working sample 5.10 kernel configuration for an IMX6 board? Matthias Klein
@ 2021-07-08 15:21 ` Ahmed S. Darwish
2021-07-08 15:25 ` Ahmed S. Darwish
1 sibling, 0 replies; 7+ messages in thread
From: Ahmed S. Darwish @ 2021-07-08 15:21 UTC (permalink / raw)
To: Matthias Klein; +Cc: linux-rt-users
On Thu, Jul 08, 2021, Matthias Klein wrote:
>
> I am trying to get the PREEMPT_RT patch to run on a Ka-Ro TX6U-8033
> module (800MHz i.MX6U7).
>
> The kernel boots and basically works. But I have measurements with
> cyclictest with maximum latency of up to 2..3 milliseconds with only
> 100000 runs.
>
Was this an official v5.10 -rt release? If so, which?
Please note that applying the preempt_rt patch over NXP's vendor tree is
not supported.
> I would like to compare my configuration in a first step with a
> working IMX6 configuration which has no such outliers.
Attach your .config and I'll give it a quick PREEMPT_RT sanity check.
thanks,
--
Ahmed S. Darwish
Linutronix GmbH
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Working sample 5.10 kernel configuration for an IMX6 board?
2021-07-08 7:43 Working sample 5.10 kernel configuration for an IMX6 board? Matthias Klein
2021-07-08 15:21 ` Ahmed S. Darwish
@ 2021-07-08 15:25 ` Ahmed S. Darwish
2021-07-08 15:46 ` AW: " Matthias Klein
1 sibling, 1 reply; 7+ messages in thread
From: Ahmed S. Darwish @ 2021-07-08 15:25 UTC (permalink / raw)
To: Matthias Klein; +Cc: linux-rt-users
On Thu, Jul 08, 2021, Matthias Klein wrote:
>
> What should be the maximum latency with kernel 5.10?
>
Assuming that it's an official -rt release and the defconfig is properly
sanitized, for imx6 SoCs you should get worst-case latencies in the
100->120 microseconds range.
--
Ahmed S. Darwish
Linutronix GmbH
^ permalink raw reply [flat|nested] 7+ messages in thread
* AW: Working sample 5.10 kernel configuration for an IMX6 board?
2021-07-08 15:25 ` Ahmed S. Darwish
@ 2021-07-08 15:46 ` Matthias Klein
2021-07-09 10:18 ` Ahmed S. Darwish
0 siblings, 1 reply; 7+ messages in thread
From: Matthias Klein @ 2021-07-08 15:46 UTC (permalink / raw)
To: linux-rt-users
[-- Attachment #1: Type: text/plain, Size: 901 bytes --]
Hello Ahmed,
Thank you for the generous offer!
It is basically a 5.10.41-rt42 mainline kernel with a few patches from Ka-Ro and minimal tweaks from me. See: https://github.com/optimeas/linux-tx6-5.10/commits/tx6-5.10
The configuration is attached.
Best regards,
Matthias Klein
-----Ursprüngliche Nachricht-----
Von: Ahmed S. Darwish <a.darwish@linutronix.de>
Gesendet: Donnerstag, 8. Juli 2021 17:25
An: Matthias Klein <matthias.klein@optimeas.de>
Cc: linux-rt-users@vger.kernel.org
Betreff: Re: Working sample 5.10 kernel configuration for an IMX6 board?
On Thu, Jul 08, 2021, Matthias Klein wrote:
>
> What should be the maximum latency with kernel 5.10?
>
Assuming that it's an official -rt release and the defconfig is properly sanitized, for imx6 SoCs you should get worst-case latencies in the
100->120 microseconds range.
--
Ahmed S. Darwish
Linutronix GmbH
[-- Attachment #2: defconfig --]
[-- Type: application/octet-stream, Size: 16052 bytes --]
CONFIG_KERNEL_LZO=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_RT=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_CGROUPS=y
CONFIG_MEMCG=y
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SGETMASK_SYSCALL=y
# CONFIG_AIO is not set
CONFIG_USERFAULTFD=y
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB_FREELIST_RANDOM=y
CONFIG_ARCH_MXC=y
CONFIG_SOC_IMX6Q=y
CONFIG_SMP=y
CONFIG_HAVE_ARM_ARCH_TIMER=y
CONFIG_VMSPLIT_2G=y
CONFIG_ARM_PSCI=y
CONFIG_HIGHMEM=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPUFREQ_DT=y
CONFIG_ARM_IMX6Q_CPUFREQ=y
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_ARM_CPUIDLE=y
CONFIG_VFP=y
CONFIG_NEON=y
CONFIG_PM_AUTOSLEEP=y
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
CONFIG_PM_TEST_SUSPEND=y
CONFIG_APM_EMULATION=y
CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLK_CMDLINE_PARSER=y
# CONFIG_BOUNCE is not set
CONFIG_KSM=y
CONFIG_CLEANCACHE=y
CONFIG_FRONTSWAP=y
CONFIG_CMA_DEBUGFS=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM_USER=m
CONFIG_NET_KEY=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_IPCOMP=y
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_CT_NETLINK_TIMEOUT=m
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_TABLES=m
CONFIG_NF_TABLES_NETDEV=y
CONFIG_NFT_CT=m
CONFIG_NFT_COUNTER=m
CONFIG_NFT_LOG=m
CONFIG_NFT_LIMIT=m
CONFIG_NFT_MASQ=m
CONFIG_NFT_REDIR=m
CONFIG_NFT_QUEUE=m
CONFIG_NFT_REJECT=m
CONFIG_NFT_COMPAT=m
CONFIG_NFT_HASH=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_HMARK=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_LED=m
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_BPF=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_IPCOMP=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_L2TP=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_SET=m
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPMARK=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
CONFIG_IP_SET_HASH_MAC=m
CONFIG_IP_SET_HASH_NETPORTNET=m
CONFIG_IP_SET_HASH_NET=m
CONFIG_IP_SET_HASH_NETNET=m
CONFIG_IP_SET_HASH_NETPORT=m
CONFIG_IP_SET_HASH_NETIFACE=m
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_FO=m
CONFIG_IP_VS_OVF=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_PE_SIP=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NF_TABLES_ARP=y
CONFIG_NF_LOG_ARP=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_SYNPROXY=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_CAN=y
CONFIG_CAN_ISOTP=m
CONFIG_CAN_VCAN=y
CONFIG_CAN_FLEXCAN=y
CONFIG_CAN_PEAK_USB=m
CONFIG_BT=y
CONFIG_BT_BNEP=y
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=y
CONFIG_BT_LEDS=y
CONFIG_BT_HCIBTUSB=y
CONFIG_CFG80211=y
CONFIG_CFG80211_DEBUGFS=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=y
CONFIG_PCI=y
CONFIG_PCI_MSI=y
CONFIG_PCI_IMX6=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx6q.bin"
CONFIG_EXTRA_FIRMWARE_DIR="."
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
CONFIG_FW_LOADER_COMPRESS=y
# CONFIG_ALLOW_DEV_COREDUMP is not set
CONFIG_IMX_WEIM=y
CONFIG_CONNECTOR=y
CONFIG_OF_OVERLAY=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=65536
CONFIG_EEPROM_AT24=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_NET_VENDOR_CORTINA is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_FARADAY is not set
# CONFIG_NET_VENDOR_GOOGLE is not set
# CONFIG_NET_VENDOR_HISILICON is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETERION is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
# CONFIG_NET_VENDOR_PENSANDO is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_XILINX is not set
CONFIG_SMSC_PHY=y
CONFIG_USB_RTL8150=m
CONFIG_USB_RTL8152=m
CONFIG_USB_LAN78XX=m
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
CONFIG_USB_NET_CDC_NCM=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_NET_QMI_WWAN=y
CONFIG_ATH9K=m
CONFIG_ATH10K=m
CONFIG_ATH10K_PCI=m
CONFIG_ATH10K_USB=m
# CONFIG_INPUT_LEDS is not set
CONFIG_INPUT_SPARSEKMAP=y
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=m
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO=y
CONFIG_KEYBOARD_MATRIX=y
CONFIG_KEYBOARD_IMX=y
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_EGALAX=y
CONFIG_TOUCHSCREEN_EDT_FT5X06=y
CONFIG_TOUCHSCREEN_USB_COMPOSITE=y
# CONFIG_TOUCHSCREEN_USB_PANJIT is not set
# CONFIG_TOUCHSCREEN_USB_3M is not set
# CONFIG_TOUCHSCREEN_USB_ITM is not set
# CONFIG_TOUCHSCREEN_USB_ETURBO is not set
# CONFIG_TOUCHSCREEN_USB_GUNZE is not set
# CONFIG_TOUCHSCREEN_USB_DMC_TSC10 is not set
# CONFIG_TOUCHSCREEN_USB_IRTOUCH is not set
# CONFIG_TOUCHSCREEN_USB_IDEALTEK is not set
# CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH is not set
# CONFIG_TOUCHSCREEN_USB_GOTOP is not set
# CONFIG_TOUCHSCREEN_USB_JASTEC is not set
# CONFIG_TOUCHSCREEN_USB_ELO is not set
# CONFIG_TOUCHSCREEN_USB_E2I is not set
# CONFIG_TOUCHSCREEN_USB_ZYTRONIC is not set
# CONFIG_TOUCHSCREEN_USB_ETT_TC45USB is not set
# CONFIG_TOUCHSCREEN_USB_NEXIO is not set
# CONFIG_TOUCHSCREEN_USB_EASYTOUCH is not set
CONFIG_TOUCHSCREEN_TSC2007=y
# CONFIG_SERIO is not set
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_SERIAL_IMX=y
CONFIG_SERIAL_IMX_CONSOLE=y
CONFIG_DEVKMEM=y
# CONFIG_DEVPORT is not set
# CONFIG_I2C_COMPAT is not set
CONFIG_I2C_CHARDEV=y
# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_GPIO=y
CONFIG_I2C_IMX=y
CONFIG_SPI=y
CONFIG_SPI_GPIO=y
CONFIG_SPI_IMX=y
CONFIG_SPI_SPIDEV=y
CONFIG_PPS=y
# CONFIG_PTP_1588_CLOCK is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_MXC=y
CONFIG_POWER_RESET=y
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=600
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE=y
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
CONFIG_CPU_THERMAL=y
CONFIG_DEVFREQ_THERMAL=y
CONFIG_THERMAL_EMULATION=y
CONFIG_IMX_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_WATCHDOG_SYSFS=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_IMX2_WDT=y
CONFIG_MFD_RN5T618=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_ANATOP=y
CONFIG_REGULATOR_RN5T618=y
CONFIG_MEDIA_SUPPORT=y
CONFIG_V4L_PLATFORM_DRIVERS=y
CONFIG_V4L_MEM2MEM_DRIVERS=y
CONFIG_VIDEO_CODA=y
# CONFIG_VGA_ARB is not set
CONFIG_IMX_IPUV3_CORE=y
CONFIG_DRM=y
CONFIG_DRM_PANEL_SIMPLE=y
CONFIG_DRM_IMX=y
CONFIG_DRM_IMX_PARALLEL_DISPLAY=y
CONFIG_DRM_ETNAVIV=y
CONFIG_FB_TILEBLITTING=y
CONFIG_FB_SIMPLE=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_PWM=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_HRTIMER=y
CONFIG_SND_DYNAMIC_MINORS=y
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_VERBOSE_PRINTK=y
# CONFIG_SND_DRIVERS is not set
# CONFIG_SND_PCI is not set
# CONFIG_SND_ARM is not set
# CONFIG_SND_SPI is not set
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=y
CONFIG_SND_IMX_SOC=y
CONFIG_SND_SOC_IMX_SGTL5000=y
CONFIG_SND_SIMPLE_CARD=y
CONFIG_SND_AUDIO_GRAPH_CARD=y
# CONFIG_USB_PCI is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_MON=m
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_REALTEK=y
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_CHIPIDEA=y
CONFIG_USB_CHIPIDEA_UDC=y
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_SIMPLE=m
CONFIG_USB_SERIAL_BELKIN=y
CONFIG_USB_SERIAL_CP210X=y
CONFIG_USB_SERIAL_FTDI_SIO=y
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_TEST=m
CONFIG_USB_MXS_PHY=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_VBUS_DRAW=500
CONFIG_USB_FSL_USB2=y
CONFIG_USB_CONFIGFS=m
CONFIG_USB_CONFIGFS_SERIAL=y
CONFIG_USB_CONFIGFS_ACM=y
CONFIG_USB_CONFIGFS_OBEX=y
CONFIG_USB_CONFIGFS_NCM=y
CONFIG_USB_CONFIGFS_ECM=y
CONFIG_USB_CONFIGFS_ECM_SUBSET=y
CONFIG_USB_CONFIGFS_RNDIS=y
CONFIG_USB_CONFIGFS_EEM=y
CONFIG_USB_CONFIGFS_MASS_STORAGE=y
CONFIG_USB_CONFIGFS_F_LB_SS=y
CONFIG_USB_CONFIGFS_F_FS=y
CONFIG_USB_CONFIGFS_F_UAC1=y
CONFIG_USB_CONFIGFS_F_UAC2=y
CONFIG_USB_CONFIGFS_F_MIDI=y
CONFIG_USB_CONFIGFS_F_HID=y
CONFIG_USB_CONFIGFS_F_PRINTER=y
CONFIG_USB_ZERO=m
CONFIG_USB_ETH=m
CONFIG_USB_G_NCM=m
CONFIG_USB_GADGETFS=m
CONFIG_USB_FUNCTIONFS=m
CONFIG_USB_FUNCTIONFS_ETH=y
CONFIG_USB_FUNCTIONFS_RNDIS=y
CONFIG_USB_FUNCTIONFS_GENERIC=y
CONFIG_USB_MASS_STORAGE=m
CONFIG_USB_G_SERIAL=m
CONFIG_MMC=y
CONFIG_MMC_BLOCK_MINORS=32
CONFIG_MMC_TEST=m
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_ESDHC_IMX=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_PWM=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_ONESHOT=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_M41T80=y
CONFIG_RTC_DRV_SNVS=y
CONFIG_DMADEVICES=y
CONFIG_IMX_SDMA=y
CONFIG_MXS_DMA=y
# CONFIG_MX3_IPU is not set
# CONFIG_ARM_ARCH_TIMER_EVTSTREAM is not set
CONFIG_PM_DEVFREQ=y
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
CONFIG_DEVFREQ_GOV_PERFORMANCE=y
CONFIG_DEVFREQ_GOV_POWERSAVE=y
CONFIG_DEVFREQ_GOV_USERSPACE=y
CONFIG_EXTCON_GPIO=y
CONFIG_PWM=y
CONFIG_PWM_IMX27=y
CONFIG_NVMEM_IMX_IIM=y
CONFIG_NVMEM_IMX_OCOTP=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=y
CONFIG_OVERLAY_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_CHILDREN=y
CONFIG_CONFIGFS_FS=y
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_DECOMP_MULTI=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_NLS_DEFAULT="cp437"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_UTF8=y
CONFIG_SECURITY=y
CONFIG_CRYPTO_DEV_FSL_CAAM=y
# CONFIG_XZ_DEC_X86 is not set
# CONFIG_XZ_DEC_POWERPC is not set
# CONFIG_XZ_DEC_IA64 is not set
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_SPARC is not set
CONFIG_CMA_SIZE_MBYTES=128
CONFIG_PRINTK_TIME=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_PAGE_POISONING=y
CONFIG_SCHED_STACK_END_CHECK=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_TIMEOUT=-1
CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
CONFIG_WQ_WATCHDOG=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_PROVE_LOCKING=y
# CONFIG_FTRACE is not set
CONFIG_DEBUG_USER=y
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Working sample 5.10 kernel configuration for an IMX6 board?
2021-07-08 15:46 ` AW: " Matthias Klein
@ 2021-07-09 10:18 ` Ahmed S. Darwish
2021-07-12 14:34 ` AW: " Matthias Klein
0 siblings, 1 reply; 7+ messages in thread
From: Ahmed S. Darwish @ 2021-07-09 10:18 UTC (permalink / raw)
To: Matthias Klein; +Cc: linux-rt-users
On Thu, Jul 08, 2021 at 03:46:14PM +0000, Matthias Klein wrote:
>
> The configuration is attached.
>
I've quickly inspected the .config file resulting from the defconfig
above. You should disable the enabled symbols below:
- CONFIG_PROVE_LOCKING
- CONFIG_DEBUG_ALIGN_RODATA
- CONFIG_DEBUG_FS_ALLOW_ALL
- CONFIG_DEBUG_MISC
- CONFIG_DEBUG_PREEMPT
- CONFIG_DEBUG_RT_MUTEXES
- CONFIG_DEBUG_SPINLOCK
- CONFIG_DEBUG_MUTEXES
- CONFIG_DEBUG_WW_MUTEX_SLOWPATH
- CONFIG_DEBUG_RWSEMS
- CONFIG_DEBUG_LOCK_ALLOC
- CONFIG_DEBUG_USER
- CONFIG_NO_HZ_COMMON
- CONFIG_NO_HZ_IDLE
- CONFIG_NO_HZ
You also have a lot of CPU frequency governors enabled. Disable all of
them except the performance governor and make sure that
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y.
The above, especially disabling CONFIG_PROVE_LOCKING and
CONFIG_DEBUG_PREEMPT, should really fix your problem.
If you still have issues, play around with disabling CONFIG_CPU_IDLE and
its governors. Note though that CPU manufacturers sometimes advise
against doing this.
If the latency is still higher than desired, see if CONFIG_DRM and high
GPU workloads negatively affects it . On some architectures, latency can
increase by 100 microseconds or more due to sharing of the Last Level
Cache and memory bandwidth between the GPU and the CPU.
After all of this, if latency is still higher than the 100->150
microseconds range, it's possible that the custom code you've added is
doing shady stuff; e.g., manually disabling interrupts or preemption.
If it aint so, and the latency is still higher than the expected range
(even with a pure RT release), then you'll need to manually trace the
kernel and catch the offending call chain.
Good luck,
--
Ahmed S. Darwish
Linutronix GmbH
^ permalink raw reply [flat|nested] 7+ messages in thread
* AW: Working sample 5.10 kernel configuration for an IMX6 board?
2021-07-09 10:18 ` Ahmed S. Darwish
@ 2021-07-12 14:34 ` Matthias Klein
2021-07-13 5:41 ` Ahmed S. Darwish
0 siblings, 1 reply; 7+ messages in thread
From: Matthias Klein @ 2021-07-12 14:34 UTC (permalink / raw)
To: linux-rt-users
[-- Attachment #1: Type: text/plain, Size: 250 bytes --]
Hello Ahmed,
Thank you very much for the valuable suggestions!
The maximum latency is now in the range of 120 microseconds with version 5.10.47-rt45.
(Attached is the adjusted configuration for completeness).
Many greetings,
Matthias
[-- Attachment #2: defconfig --]
[-- Type: application/octet-stream, Size: 15815 bytes --]
CONFIG_KERNEL_LZO=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_RT=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_CGROUPS=y
CONFIG_MEMCG=y
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_SGETMASK_SYSCALL=y
# CONFIG_AIO is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_USERFAULTFD=y
CONFIG_EMBEDDED=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB_FREELIST_RANDOM=y
CONFIG_ARCH_MXC=y
CONFIG_SOC_IMX6Q=y
# CONFIG_DEBUG_ALIGN_RODATA is not set
CONFIG_SMP=y
CONFIG_HAVE_ARM_ARCH_TIMER=y
CONFIG_VMSPLIT_2G=y
CONFIG_ARM_PSCI=y
CONFIG_HIGHMEM=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
CONFIG_CPUFREQ_DT=y
CONFIG_ARM_IMX6Q_CPUFREQ=y
CONFIG_VFP=y
CONFIG_NEON=y
CONFIG_PM_AUTOSLEEP=y
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
CONFIG_PM_TEST_SUSPEND=y
CONFIG_APM_EMULATION=y
CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLK_CMDLINE_PARSER=y
# CONFIG_BOUNCE is not set
CONFIG_KSM=y
CONFIG_CLEANCACHE=y
CONFIG_FRONTSWAP=y
CONFIG_CMA_DEBUGFS=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_XFRM_USER=m
CONFIG_NET_KEY=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_INET_AH=m
CONFIG_INET_ESP=m
CONFIG_INET_IPCOMP=m
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_INET6_IPCOMP=y
CONFIG_NETFILTER=y
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_TIMEOUT=y
CONFIG_NF_CONNTRACK_TIMESTAMP=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m
CONFIG_NF_CONNTRACK_IRC=m
CONFIG_NF_CONNTRACK_NETBIOS_NS=m
CONFIG_NF_CONNTRACK_SNMP=m
CONFIG_NF_CONNTRACK_PPTP=m
CONFIG_NF_CONNTRACK_SANE=m
CONFIG_NF_CONNTRACK_SIP=m
CONFIG_NF_CONNTRACK_TFTP=m
CONFIG_NF_CT_NETLINK=m
CONFIG_NF_CT_NETLINK_TIMEOUT=m
CONFIG_NF_CT_NETLINK_HELPER=m
CONFIG_NETFILTER_NETLINK_GLUE_CT=y
CONFIG_NF_TABLES=m
CONFIG_NF_TABLES_NETDEV=y
CONFIG_NFT_CT=m
CONFIG_NFT_COUNTER=m
CONFIG_NFT_LOG=m
CONFIG_NFT_LIMIT=m
CONFIG_NFT_MASQ=m
CONFIG_NFT_REDIR=m
CONFIG_NFT_QUEUE=m
CONFIG_NFT_REJECT=m
CONFIG_NFT_COMPAT=m
CONFIG_NFT_HASH=m
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
CONFIG_NETFILTER_XT_TARGET_HMARK=m
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
CONFIG_NETFILTER_XT_TARGET_LED=m
CONFIG_NETFILTER_XT_TARGET_LOG=m
CONFIG_NETFILTER_XT_TARGET_MARK=m
CONFIG_NETFILTER_XT_TARGET_NFLOG=m
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
CONFIG_NETFILTER_XT_TARGET_TEE=m
CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
CONFIG_NETFILTER_XT_MATCH_BPF=m
CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
CONFIG_NETFILTER_XT_MATCH_COMMENT=m
CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
CONFIG_NETFILTER_XT_MATCH_CPU=m
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
CONFIG_NETFILTER_XT_MATCH_IPCOMP=m
CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
CONFIG_NETFILTER_XT_MATCH_L2TP=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_POLICY=m
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
CONFIG_NETFILTER_XT_MATCH_QUOTA=m
CONFIG_NETFILTER_XT_MATCH_RATEEST=m
CONFIG_NETFILTER_XT_MATCH_REALM=m
CONFIG_NETFILTER_XT_MATCH_RECENT=m
CONFIG_NETFILTER_XT_MATCH_SCTP=m
CONFIG_NETFILTER_XT_MATCH_SOCKET=m
CONFIG_NETFILTER_XT_MATCH_STATE=m
CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
CONFIG_NETFILTER_XT_MATCH_STRING=m
CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
CONFIG_NETFILTER_XT_MATCH_TIME=m
CONFIG_NETFILTER_XT_MATCH_U32=m
CONFIG_IP_SET=m
CONFIG_IP_SET_BITMAP_IP=m
CONFIG_IP_SET_BITMAP_IPMAC=m
CONFIG_IP_SET_BITMAP_PORT=m
CONFIG_IP_SET_HASH_IP=m
CONFIG_IP_SET_HASH_IPMARK=m
CONFIG_IP_SET_HASH_IPPORT=m
CONFIG_IP_SET_HASH_IPPORTIP=m
CONFIG_IP_SET_HASH_IPPORTNET=m
CONFIG_IP_SET_HASH_MAC=m
CONFIG_IP_SET_HASH_NETPORTNET=m
CONFIG_IP_SET_HASH_NET=m
CONFIG_IP_SET_HASH_NETNET=m
CONFIG_IP_SET_HASH_NETPORT=m
CONFIG_IP_SET_HASH_NETIFACE=m
CONFIG_IP_SET_LIST_SET=m
CONFIG_IP_VS=m
CONFIG_IP_VS_PROTO_TCP=y
CONFIG_IP_VS_PROTO_UDP=y
CONFIG_IP_VS_PROTO_ESP=y
CONFIG_IP_VS_PROTO_AH=y
CONFIG_IP_VS_PROTO_SCTP=y
CONFIG_IP_VS_RR=m
CONFIG_IP_VS_WRR=m
CONFIG_IP_VS_LC=m
CONFIG_IP_VS_WLC=m
CONFIG_IP_VS_FO=m
CONFIG_IP_VS_OVF=m
CONFIG_IP_VS_LBLC=m
CONFIG_IP_VS_LBLCR=m
CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_PE_SIP=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NF_TABLES_ARP=y
CONFIG_NF_LOG_ARP=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_SYNPROXY=m
CONFIG_IP_NF_NAT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_TARGET_NETMAP=m
CONFIG_IP_NF_TARGET_REDIRECT=m
CONFIG_IP_NF_MANGLE=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_ECN=m
CONFIG_IP_NF_TARGET_TTL=m
CONFIG_IP_NF_RAW=m
CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_CAN=y
CONFIG_CAN_ISOTP=m
CONFIG_CAN_VCAN=y
CONFIG_CAN_FLEXCAN=y
CONFIG_CAN_PEAK_USB=m
CONFIG_BT=y
CONFIG_BT_BNEP=y
CONFIG_BT_BNEP_MC_FILTER=y
CONFIG_BT_BNEP_PROTO_FILTER=y
CONFIG_BT_HIDP=y
CONFIG_BT_LEDS=y
CONFIG_BT_HCIBTUSB=y
CONFIG_CFG80211=y
CONFIG_CFG80211_DEBUGFS=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=y
CONFIG_PCI=y
CONFIG_PCI_MSI=y
CONFIG_PCI_IMX6=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx6q.bin"
CONFIG_EXTRA_FIRMWARE_DIR="."
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
CONFIG_FW_LOADER_COMPRESS=y
# CONFIG_ALLOW_DEV_COREDUMP is not set
CONFIG_IMX_WEIM=y
CONFIG_CONNECTOR=y
CONFIG_OF_OVERLAY=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=65536
CONFIG_EEPROM_AT24=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALACRITECH is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_AQUANTIA is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CADENCE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CIRRUS is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_NET_VENDOR_CORTINA is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_FARADAY is not set
# CONFIG_NET_VENDOR_GOOGLE is not set
# CONFIG_NET_VENDOR_HISILICON is not set
# CONFIG_NET_VENDOR_HUAWEI is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MICROSEMI is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETERION is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NI is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_NET_VENDOR_PACKET_ENGINES is not set
# CONFIG_NET_VENDOR_PENSANDO is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_REALTEK is not set
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SOLARFLARE is not set
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_SOCIONEXT is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_NET_VENDOR_XILINX is not set
CONFIG_SMSC_PHY=y
CONFIG_USB_RTL8150=m
CONFIG_USB_RTL8152=m
CONFIG_USB_LAN78XX=m
CONFIG_USB_USBNET=y
CONFIG_USB_NET_AX8817X=m
CONFIG_USB_NET_AX88179_178A=m
CONFIG_USB_NET_CDC_NCM=m
CONFIG_USB_NET_NET1080=m
CONFIG_USB_NET_CDC_SUBSET=m
CONFIG_USB_NET_QMI_WWAN=y
CONFIG_ATH9K=m
CONFIG_ATH10K=m
CONFIG_ATH10K_PCI=m
CONFIG_ATH10K_USB=m
# CONFIG_INPUT_LEDS is not set
CONFIG_INPUT_SPARSEKMAP=y
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=m
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO=y
CONFIG_KEYBOARD_MATRIX=y
CONFIG_KEYBOARD_IMX=y
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_EGALAX=y
CONFIG_TOUCHSCREEN_EDT_FT5X06=y
CONFIG_TOUCHSCREEN_USB_COMPOSITE=y
# CONFIG_TOUCHSCREEN_USB_PANJIT is not set
# CONFIG_TOUCHSCREEN_USB_3M is not set
# CONFIG_TOUCHSCREEN_USB_ITM is not set
# CONFIG_TOUCHSCREEN_USB_ETURBO is not set
# CONFIG_TOUCHSCREEN_USB_GUNZE is not set
# CONFIG_TOUCHSCREEN_USB_DMC_TSC10 is not set
# CONFIG_TOUCHSCREEN_USB_IRTOUCH is not set
# CONFIG_TOUCHSCREEN_USB_IDEALTEK is not set
# CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH is not set
# CONFIG_TOUCHSCREEN_USB_GOTOP is not set
# CONFIG_TOUCHSCREEN_USB_JASTEC is not set
# CONFIG_TOUCHSCREEN_USB_ELO is not set
# CONFIG_TOUCHSCREEN_USB_E2I is not set
# CONFIG_TOUCHSCREEN_USB_ZYTRONIC is not set
# CONFIG_TOUCHSCREEN_USB_ETT_TC45USB is not set
# CONFIG_TOUCHSCREEN_USB_NEXIO is not set
# CONFIG_TOUCHSCREEN_USB_EASYTOUCH is not set
CONFIG_TOUCHSCREEN_TSC2007=y
# CONFIG_SERIO is not set
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_SERIAL_IMX=y
CONFIG_SERIAL_IMX_CONSOLE=y
CONFIG_DEVKMEM=y
# CONFIG_DEVPORT is not set
# CONFIG_I2C_COMPAT is not set
CONFIG_I2C_CHARDEV=y
# CONFIG_I2C_HELPER_AUTO is not set
CONFIG_I2C_GPIO=y
CONFIG_I2C_IMX=y
CONFIG_SPI=y
CONFIG_SPI_GPIO=y
CONFIG_SPI_IMX=y
CONFIG_SPI_SPIDEV=y
CONFIG_PPS=y
# CONFIG_PTP_1588_CLOCK is not set
CONFIG_GPIO_SYSFS=y
CONFIG_GPIO_MXC=y
CONFIG_POWER_RESET=y
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=600
CONFIG_THERMAL_WRITABLE_TRIPS=y
CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE=y
CONFIG_CPU_THERMAL=y
CONFIG_DEVFREQ_THERMAL=y
CONFIG_THERMAL_EMULATION=y
CONFIG_IMX_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y
CONFIG_WATCHDOG_SYSFS=y
CONFIG_WATCHDOG_PRETIMEOUT_GOV=y
CONFIG_IMX2_WDT=y
CONFIG_MFD_RN5T618=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_DEBUG=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_ANATOP=y
CONFIG_REGULATOR_RN5T618=y
CONFIG_MEDIA_SUPPORT=y
CONFIG_V4L_PLATFORM_DRIVERS=y
CONFIG_V4L_MEM2MEM_DRIVERS=y
CONFIG_VIDEO_CODA=y
# CONFIG_VGA_ARB is not set
CONFIG_IMX_IPUV3_CORE=y
CONFIG_DRM=y
CONFIG_DRM_PANEL_SIMPLE=y
CONFIG_DRM_IMX=y
CONFIG_DRM_IMX_PARALLEL_DISPLAY=y
CONFIG_DRM_ETNAVIV=y
CONFIG_FB_TILEBLITTING=y
CONFIG_FB_SIMPLE=y
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_PWM=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
CONFIG_LOGO=y
CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_HRTIMER=y
CONFIG_SND_DYNAMIC_MINORS=y
# CONFIG_SND_SUPPORT_OLD_API is not set
CONFIG_SND_VERBOSE_PRINTK=y
# CONFIG_SND_DRIVERS is not set
# CONFIG_SND_PCI is not set
# CONFIG_SND_ARM is not set
# CONFIG_SND_SPI is not set
# CONFIG_SND_USB is not set
CONFIG_SND_SOC=y
CONFIG_SND_IMX_SOC=y
CONFIG_SND_SOC_IMX_SGTL5000=y
CONFIG_SND_SIMPLE_CARD=y
CONFIG_SND_AUDIO_GRAPH_CARD=y
# CONFIG_USB_PCI is not set
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_DYNAMIC_MINORS=y
CONFIG_USB_MON=m
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_STORAGE=y
CONFIG_USB_STORAGE_REALTEK=y
CONFIG_USB_STORAGE_DATAFAB=y
CONFIG_USB_STORAGE_SDDR09=y
CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_CHIPIDEA=y
CONFIG_USB_CHIPIDEA_UDC=y
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_USB_SERIAL=y
CONFIG_USB_SERIAL_GENERIC=y
CONFIG_USB_SERIAL_SIMPLE=m
CONFIG_USB_SERIAL_BELKIN=y
CONFIG_USB_SERIAL_CP210X=y
CONFIG_USB_SERIAL_FTDI_SIO=y
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_TEST=m
CONFIG_USB_MXS_PHY=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_VBUS_DRAW=500
CONFIG_USB_FSL_USB2=y
CONFIG_USB_CONFIGFS=m
CONFIG_USB_CONFIGFS_SERIAL=y
CONFIG_USB_CONFIGFS_ACM=y
CONFIG_USB_CONFIGFS_OBEX=y
CONFIG_USB_CONFIGFS_NCM=y
CONFIG_USB_CONFIGFS_ECM=y
CONFIG_USB_CONFIGFS_ECM_SUBSET=y
CONFIG_USB_CONFIGFS_RNDIS=y
CONFIG_USB_CONFIGFS_EEM=y
CONFIG_USB_CONFIGFS_MASS_STORAGE=y
CONFIG_USB_CONFIGFS_F_LB_SS=y
CONFIG_USB_CONFIGFS_F_FS=y
CONFIG_USB_CONFIGFS_F_UAC1=y
CONFIG_USB_CONFIGFS_F_UAC2=y
CONFIG_USB_CONFIGFS_F_MIDI=y
CONFIG_USB_CONFIGFS_F_HID=y
CONFIG_USB_CONFIGFS_F_PRINTER=y
CONFIG_USB_ZERO=m
CONFIG_USB_ETH=m
CONFIG_USB_G_NCM=m
CONFIG_USB_GADGETFS=m
CONFIG_USB_FUNCTIONFS=m
CONFIG_USB_FUNCTIONFS_ETH=y
CONFIG_USB_FUNCTIONFS_RNDIS=y
CONFIG_USB_FUNCTIONFS_GENERIC=y
CONFIG_USB_MASS_STORAGE=m
CONFIG_USB_G_SERIAL=m
CONFIG_MMC=y
CONFIG_MMC_BLOCK_MINORS=32
CONFIG_MMC_TEST=m
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_ESDHC_IMX=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_PWM=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_ONESHOT=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_GPIO=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_NVMEM is not set
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_M41T80=y
CONFIG_RTC_DRV_SNVS=y
CONFIG_DMADEVICES=y
CONFIG_IMX_SDMA=y
CONFIG_MXS_DMA=y
# CONFIG_MX3_IPU is not set
# CONFIG_ARM_ARCH_TIMER_EVTSTREAM is not set
CONFIG_PM_DEVFREQ=y
CONFIG_EXTCON_GPIO=y
CONFIG_PWM=y
CONFIG_PWM_IMX27=y
CONFIG_NVMEM_IMX_IIM=y
CONFIG_NVMEM_IMX_OCOTP=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_AUTOFS4_FS=y
CONFIG_FUSE_FS=y
CONFIG_OVERLAY_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_CHILDREN=y
CONFIG_CONFIGFS_FS=y
CONFIG_SQUASHFS=y
CONFIG_SQUASHFS_FILE_DIRECT=y
CONFIG_SQUASHFS_DECOMP_MULTI=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
CONFIG_NLS_DEFAULT="cp437"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_UTF8=y
CONFIG_SECURITY=y
CONFIG_CRYPTO_DEV_FSL_CAAM=y
# CONFIG_XZ_DEC_X86 is not set
# CONFIG_XZ_DEC_POWERPC is not set
# CONFIG_XZ_DEC_IA64 is not set
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_SPARC is not set
CONFIG_CMA_SIZE_MBYTES=128
CONFIG_PRINTK_TIME=y
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_DISALLOW_MOUNT=y
# CONFIG_DEBUG_MISC is not set
CONFIG_PAGE_POISONING=y
CONFIG_SCHED_STACK_END_CHECK=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_PANIC_TIMEOUT=-1
CONFIG_SOFTLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
CONFIG_WQ_WATCHDOG=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_STACKTRACE=y
# CONFIG_FTRACE is not set
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Working sample 5.10 kernel configuration for an IMX6 board?
2021-07-12 14:34 ` AW: " Matthias Klein
@ 2021-07-13 5:41 ` Ahmed S. Darwish
0 siblings, 0 replies; 7+ messages in thread
From: Ahmed S. Darwish @ 2021-07-13 5:41 UTC (permalink / raw)
To: Matthias Klein; +Cc: linux-rt-users
On Mon, Jul 12, 2021, Matthias Klein wrote:
>
> Thank you very much for the valuable suggestions!
>
> The maximum latency is now in the range of 120 microseconds with
> version 5.10.47-rt45.
>
Perfect, just as projected :)
Good luck,
--
Ahmed S. Darwish
Linutronix GmbH
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-07-13 5:41 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-08 7:43 Working sample 5.10 kernel configuration for an IMX6 board? Matthias Klein
2021-07-08 15:21 ` Ahmed S. Darwish
2021-07-08 15:25 ` Ahmed S. Darwish
2021-07-08 15:46 ` AW: " Matthias Klein
2021-07-09 10:18 ` Ahmed S. Darwish
2021-07-12 14:34 ` AW: " Matthias Klein
2021-07-13 5:41 ` Ahmed S. Darwish
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