From: David Coe <david.coe@live.co.uk>
To: "Suthikulpanit, Suravee" <suravee.suthikulpanit@amd.com>,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org
Cc: joro@8bytes.org, will@kernel.org, jsnitsel@redhat.com,
pmenzel@molgen.mpg.de, Jon.Grimm@amd.com,
Tj <ml.linux@elloe.vision>,
Shuah Khan <skhan@linuxfoundation.org>,
Alexander Monakov <amonakov@ispras.ru>,
Alex Hung <1917203@bugs.launchpad.net>
Subject: Re: [PATCH 2/2] iommu/amd: Remove performance counter pre-initialization test
Date: Wed, 14 Apr 2021 23:18:00 +0100 [thread overview]
Message-ID: <VI1PR09MB2638CE523F2E7E2DF4A6B087C74E9@VI1PR09MB2638.eurprd09.prod.outlook.com> (raw)
In-Reply-To: <add9d575-191e-d7a6-e3e1-dfc7ea7f35c8@amd.com>
[-- Attachment #1: Type: text/plain, Size: 411 bytes --]
Hi again!
For completeness, I'm attaching results for the revert+update patch
running the Ubuntu 21.04β kernel 5.11.0-14 on a Ryzen 4700U laptop.
The enormous amd_iommu running stats aren't always there, as they nearly
always are on the the 2400G desktop, but they do turn up (depending on
what the machine's been doing).
Be very interested in your thoughts on their relevance!
Best regards,
--
David
[-- Attachment #2: 4700U-5.11.0-14.txt --]
[-- Type: text/plain, Size: 5661 bytes --]
$ sudo dmesg | grep IOMMU
[ 0.498593] pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported
[ 0.500507] pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
[ 0.502011] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).
[ 1.113195] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
$ sudo perf list | grep iommu
amd_iommu_0/cmd_processed/ [Kernel PMU event]
amd_iommu_0/cmd_processed_inv/ [Kernel PMU event]
amd_iommu_0/ign_rd_wr_mmio_1ff8h/ [Kernel PMU event]
amd_iommu_0/int_dte_hit/ [Kernel PMU event]
amd_iommu_0/int_dte_mis/ [Kernel PMU event]
amd_iommu_0/mem_dte_hit/ [Kernel PMU event]
amd_iommu_0/mem_dte_mis/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pde_hit/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pde_mis/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pte_hit/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pte_mis/ [Kernel PMU event]
amd_iommu_0/mem_pass_excl/ [Kernel PMU event]
amd_iommu_0/mem_pass_pretrans/ [Kernel PMU event]
amd_iommu_0/mem_pass_untrans/ [Kernel PMU event]
amd_iommu_0/mem_target_abort/ [Kernel PMU event]
amd_iommu_0/mem_trans_total/ [Kernel PMU event]
amd_iommu_0/page_tbl_read_gst/ [Kernel PMU event]
amd_iommu_0/page_tbl_read_nst/ [Kernel PMU event]
amd_iommu_0/page_tbl_read_tot/ [Kernel PMU event]
amd_iommu_0/smi_blk/ [Kernel PMU event]
amd_iommu_0/smi_recv/ [Kernel PMU event]
amd_iommu_0/tlb_inv/ [Kernel PMU event]
amd_iommu_0/vapic_int_guest/ [Kernel PMU event]
amd_iommu_0/vapic_int_non_guest/ [Kernel PMU event]
intel_iommu:bounce_map_sg [Tracepoint event]
intel_iommu:bounce_map_single [Tracepoint event]
intel_iommu:bounce_unmap_single [Tracepoint event]
intel_iommu:map_sg [Tracepoint event]
intel_iommu:map_single [Tracepoint event]
intel_iommu:unmap_sg [Tracepoint event]
intel_iommu:unmap_single [Tracepoint event]
iommu:add_device_to_group [Tracepoint event]
iommu:attach_device_to_domain [Tracepoint event]
iommu:detach_device_from_domain [Tracepoint event]
iommu:io_page_fault [Tracepoint event]
iommu:map [Tracepoint event]
iommu:remove_device_from_group [Tracepoint event]
iommu:unmap [Tracepoint event]
$ sudo perf stat -e 'amd_iommu_0/cmd_processed/, amd_iommu_0/cmd_processed_inv/, amd_iommu_0/ign_rd_wr_mmio_1ff8h/, amd_iommu_0/int_dte_hit/, amd_iommu_0/int_dte_mis/, amd_iommu_0/mem_dte_hit/, amd_iommu_0/mem_dte_mis/, amd_iommu_0/mem_iommu_tlb_pde_hit/, amd_iommu_0/mem_iommu_tlb_pde_mis/, amd_iommu_0/mem_iommu_tlb_pte_hit/, amd_iommu_0/mem_iommu_tlb_pte_mis/, amd_iommu_0/mem_pass_excl/, amd_iommu_0/mem_pass_pretrans/, amd_iommu_0/mem_pass_untrans/, amd_iommu_0/mem_target_abort/, amd_iommu_0/mem_trans_total/, amd_iommu_0/page_tbl_read_gst/, amd_iommu_0/page_tbl_read_nst/, amd_iommu_0/page_tbl_read_tot/, amd_iommu_0/smi_blk/, amd_iommu_0/smi_recv/, amd_iommu_0/tlb_inv/, amd_iommu_0/vapic_int_guest/, amd_iommu_0/vapic_int_non_guest/' sleep 10
Performance counter stats for 'system wide':
30 amd_iommu_0/cmd_processed/ (33.31%)
17 amd_iommu_0/cmd_processed_inv/ (33.34%)
0 amd_iommu_0/ign_rd_wr_mmio_1ff8h/ (33.36%)
374 amd_iommu_0/int_dte_hit/ (33.39%)
29 amd_iommu_0/int_dte_mis/ (33.44%)
394 amd_iommu_0/mem_dte_hit/ (33.46%)
9,117 amd_iommu_0/mem_dte_mis/ (33.45%)
5 amd_iommu_0/mem_iommu_tlb_pde_hit/ (33.46%)
819 amd_iommu_0/mem_iommu_tlb_pde_mis/ (33.42%)
2 amd_iommu_0/mem_iommu_tlb_pte_hit/ (33.39%)
1,012 amd_iommu_0/mem_iommu_tlb_pte_mis/ (33.37%)
0 amd_iommu_0/mem_pass_excl/ (33.34%)
0 amd_iommu_0/mem_pass_pretrans/ (33.29%)
1,553 amd_iommu_0/mem_pass_untrans/ (33.28%)
0 amd_iommu_0/mem_target_abort/ (33.28%)
39,207 amd_iommu_0/mem_trans_total/ (33.27%)
0 amd_iommu_0/page_tbl_read_gst/ (33.27%)
1,625 amd_iommu_0/page_tbl_read_nst/ (33.27%)
901 amd_iommu_0/page_tbl_read_tot/ (33.27%)
0 amd_iommu_0/smi_blk/ (33.7%)
0 amd_iommu_0/smi_recv/ (33.28%)
0 amd_iommu_0/tlb_inv/ (33.27%)
0 amd_iommu_0/vapic_int_guest/ (33.27%)
420 amd_iommu_0/vapic_int_non_guest/ (33.27%)
10.003004096 seconds time elapsed
WARNING: multiple messages have this Message-ID (diff)
From: David Coe <david.coe@live.co.uk>
To: "Suthikulpanit, Suravee" <suravee.suthikulpanit@amd.com>,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org
Cc: pmenzel@molgen.mpg.de, Alexander Monakov <amonakov@ispras.ru>,
Alex Hung <1917203@bugs.launchpad.net>,
Jon.Grimm@amd.com, Shuah Khan <skhan@linuxfoundation.org>,
Tj <ml.linux@elloe.vision>,
will@kernel.org
Subject: Re: [PATCH 2/2] iommu/amd: Remove performance counter pre-initialization test
Date: Wed, 14 Apr 2021 23:18:00 +0100 [thread overview]
Message-ID: <VI1PR09MB2638CE523F2E7E2DF4A6B087C74E9@VI1PR09MB2638.eurprd09.prod.outlook.com> (raw)
In-Reply-To: <add9d575-191e-d7a6-e3e1-dfc7ea7f35c8@amd.com>
[-- Attachment #1: Type: text/plain, Size: 411 bytes --]
Hi again!
For completeness, I'm attaching results for the revert+update patch
running the Ubuntu 21.04β kernel 5.11.0-14 on a Ryzen 4700U laptop.
The enormous amd_iommu running stats aren't always there, as they nearly
always are on the the 2400G desktop, but they do turn up (depending on
what the machine's been doing).
Be very interested in your thoughts on their relevance!
Best regards,
--
David
[-- Attachment #2: 4700U-5.11.0-14.txt --]
[-- Type: text/plain, Size: 5661 bytes --]
$ sudo dmesg | grep IOMMU
[ 0.498593] pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported
[ 0.500507] pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
[ 0.502011] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).
[ 1.113195] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
$ sudo perf list | grep iommu
amd_iommu_0/cmd_processed/ [Kernel PMU event]
amd_iommu_0/cmd_processed_inv/ [Kernel PMU event]
amd_iommu_0/ign_rd_wr_mmio_1ff8h/ [Kernel PMU event]
amd_iommu_0/int_dte_hit/ [Kernel PMU event]
amd_iommu_0/int_dte_mis/ [Kernel PMU event]
amd_iommu_0/mem_dte_hit/ [Kernel PMU event]
amd_iommu_0/mem_dte_mis/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pde_hit/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pde_mis/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pte_hit/ [Kernel PMU event]
amd_iommu_0/mem_iommu_tlb_pte_mis/ [Kernel PMU event]
amd_iommu_0/mem_pass_excl/ [Kernel PMU event]
amd_iommu_0/mem_pass_pretrans/ [Kernel PMU event]
amd_iommu_0/mem_pass_untrans/ [Kernel PMU event]
amd_iommu_0/mem_target_abort/ [Kernel PMU event]
amd_iommu_0/mem_trans_total/ [Kernel PMU event]
amd_iommu_0/page_tbl_read_gst/ [Kernel PMU event]
amd_iommu_0/page_tbl_read_nst/ [Kernel PMU event]
amd_iommu_0/page_tbl_read_tot/ [Kernel PMU event]
amd_iommu_0/smi_blk/ [Kernel PMU event]
amd_iommu_0/smi_recv/ [Kernel PMU event]
amd_iommu_0/tlb_inv/ [Kernel PMU event]
amd_iommu_0/vapic_int_guest/ [Kernel PMU event]
amd_iommu_0/vapic_int_non_guest/ [Kernel PMU event]
intel_iommu:bounce_map_sg [Tracepoint event]
intel_iommu:bounce_map_single [Tracepoint event]
intel_iommu:bounce_unmap_single [Tracepoint event]
intel_iommu:map_sg [Tracepoint event]
intel_iommu:map_single [Tracepoint event]
intel_iommu:unmap_sg [Tracepoint event]
intel_iommu:unmap_single [Tracepoint event]
iommu:add_device_to_group [Tracepoint event]
iommu:attach_device_to_domain [Tracepoint event]
iommu:detach_device_from_domain [Tracepoint event]
iommu:io_page_fault [Tracepoint event]
iommu:map [Tracepoint event]
iommu:remove_device_from_group [Tracepoint event]
iommu:unmap [Tracepoint event]
$ sudo perf stat -e 'amd_iommu_0/cmd_processed/, amd_iommu_0/cmd_processed_inv/, amd_iommu_0/ign_rd_wr_mmio_1ff8h/, amd_iommu_0/int_dte_hit/, amd_iommu_0/int_dte_mis/, amd_iommu_0/mem_dte_hit/, amd_iommu_0/mem_dte_mis/, amd_iommu_0/mem_iommu_tlb_pde_hit/, amd_iommu_0/mem_iommu_tlb_pde_mis/, amd_iommu_0/mem_iommu_tlb_pte_hit/, amd_iommu_0/mem_iommu_tlb_pte_mis/, amd_iommu_0/mem_pass_excl/, amd_iommu_0/mem_pass_pretrans/, amd_iommu_0/mem_pass_untrans/, amd_iommu_0/mem_target_abort/, amd_iommu_0/mem_trans_total/, amd_iommu_0/page_tbl_read_gst/, amd_iommu_0/page_tbl_read_nst/, amd_iommu_0/page_tbl_read_tot/, amd_iommu_0/smi_blk/, amd_iommu_0/smi_recv/, amd_iommu_0/tlb_inv/, amd_iommu_0/vapic_int_guest/, amd_iommu_0/vapic_int_non_guest/' sleep 10
Performance counter stats for 'system wide':
30 amd_iommu_0/cmd_processed/ (33.31%)
17 amd_iommu_0/cmd_processed_inv/ (33.34%)
0 amd_iommu_0/ign_rd_wr_mmio_1ff8h/ (33.36%)
374 amd_iommu_0/int_dte_hit/ (33.39%)
29 amd_iommu_0/int_dte_mis/ (33.44%)
394 amd_iommu_0/mem_dte_hit/ (33.46%)
9,117 amd_iommu_0/mem_dte_mis/ (33.45%)
5 amd_iommu_0/mem_iommu_tlb_pde_hit/ (33.46%)
819 amd_iommu_0/mem_iommu_tlb_pde_mis/ (33.42%)
2 amd_iommu_0/mem_iommu_tlb_pte_hit/ (33.39%)
1,012 amd_iommu_0/mem_iommu_tlb_pte_mis/ (33.37%)
0 amd_iommu_0/mem_pass_excl/ (33.34%)
0 amd_iommu_0/mem_pass_pretrans/ (33.29%)
1,553 amd_iommu_0/mem_pass_untrans/ (33.28%)
0 amd_iommu_0/mem_target_abort/ (33.28%)
39,207 amd_iommu_0/mem_trans_total/ (33.27%)
0 amd_iommu_0/page_tbl_read_gst/ (33.27%)
1,625 amd_iommu_0/page_tbl_read_nst/ (33.27%)
901 amd_iommu_0/page_tbl_read_tot/ (33.27%)
0 amd_iommu_0/smi_blk/ (33.7%)
0 amd_iommu_0/smi_recv/ (33.28%)
0 amd_iommu_0/tlb_inv/ (33.27%)
0 amd_iommu_0/vapic_int_guest/ (33.27%)
420 amd_iommu_0/vapic_int_non_guest/ (33.27%)
10.003004096 seconds time elapsed
[-- Attachment #3: Type: text/plain, Size: 156 bytes --]
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2021-04-14 22:18 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 8:58 [PATCH 0/2] iommu/amd: Revert and remove failing PMC test Suravee Suthikulpanit
2021-04-09 8:58 ` Suravee Suthikulpanit
2021-04-09 8:58 ` [PATCH 1/2] Revert "iommu/amd: Fix performance counter initialization" Suravee Suthikulpanit
2021-04-09 8:58 ` Suravee Suthikulpanit
2021-04-09 17:06 ` Shuah Khan
2021-04-09 17:06 ` Shuah Khan
2021-04-13 13:36 ` Suthikulpanit, Suravee
2021-04-13 13:36 ` Suthikulpanit, Suravee
2021-04-09 8:58 ` [PATCH 2/2] iommu/amd: Remove performance counter pre-initialization test Suravee Suthikulpanit
2021-04-09 8:58 ` Suravee Suthikulpanit
2021-04-09 16:37 ` Shuah Khan
2021-04-09 16:37 ` Shuah Khan
2021-04-09 17:10 ` Shuah Khan
2021-04-09 17:10 ` Shuah Khan
2021-04-09 20:00 ` Shuah Khan
2021-04-09 20:00 ` Shuah Khan
2021-04-09 20:19 ` Shuah Khan
2021-04-09 20:19 ` Shuah Khan
2021-04-09 20:11 ` David Coe
2021-04-09 20:11 ` David Coe
2021-04-10 8:17 ` David Coe
2021-04-10 8:17 ` David Coe
2021-04-10 10:03 ` David Coe
2021-04-10 10:03 ` David Coe
2021-04-13 13:51 ` Suthikulpanit, Suravee
2021-04-13 13:51 ` Suthikulpanit, Suravee
2021-04-14 15:33 ` David Coe
2021-04-14 15:33 ` David Coe
2021-04-15 9:28 ` Suthikulpanit, Suravee
2021-04-15 9:28 ` Suthikulpanit, Suravee
2021-04-15 14:39 ` David Coe
2021-04-15 14:39 ` David Coe
2021-04-15 16:20 ` David Coe
2021-04-15 16:20 ` David Coe
2021-04-18 19:16 ` David Coe
2021-04-18 19:16 ` David Coe
2021-04-14 22:18 ` David Coe [this message]
2021-04-14 22:18 ` David Coe
2021-04-20 8:38 ` Suthikulpanit, Suravee
2021-04-20 8:38 ` Suthikulpanit, Suravee
2021-04-20 10:33 ` Alexander Monakov
2021-04-20 10:33 ` Alexander Monakov
2021-04-13 9:38 ` David Coe
2021-04-13 9:38 ` David Coe
2021-04-15 13:41 ` [PATCH 0/2] iommu/amd: Revert and remove failing PMC test Joerg Roedel
2021-04-15 13:41 ` Joerg Roedel
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