* Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP @ 2005-01-17 20:06 Justin Piszcz 2005-01-17 20:48 ` Norbert van Nobelen 0 siblings, 1 reply; 6+ messages in thread From: Justin Piszcz @ 2005-01-17 20:06 UTC (permalink / raw) To: linux-kernel When writing to or from the drive via NFS, after 1GB or 2GB, it "feels" like the system slows to a crawl, the mouse gets very slow, almost like one is burning a CD at 52X under PIO mode. I originally had this disk in my main system with an Intel ICH5 chipset (ABIT IC7-G mobo) and a Pentium 4 2.6GHZ w/HT and I could not believe the hit the system took when writing over NFS. I put the drive on its own controller in another box to see if I could replicate the problem. The drive is on a Promise 150TX2 Plus controller. When writing locally on the disk, there is no problem. When writing to or from the drive over NFS, the system becomes _very_ slow, df -h lags, the system slows almost to a halt. I check /proc/interrupts and /var/log/messages but no errors result. There is some type of system bottleneck when using NFS with this drive. All the file systems are XFS on all systems. Can anyone offer any suggestions? I cannot explain or find the cause of this. All systems are running 2.6.10. I have an excerpt of both using dd if=/dev/zero of=file.img (locally) and from a remote computer (on a full duplex gigabit network) Locally: dd if=/dev/zero of=out.img vmstat output: procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 0 412 4928 0 662612 0 0 0 0 1065 285 16 84 0 0 1 0 412 4608 0 662556 0 0 0 78932 1148 250 14 86 0 0 1 0 412 4672 0 662868 0 0 0 13 1068 274 16 84 0 0 1 0 412 5120 0 661644 0 0 0 78928 1116 245 13 87 0 0 1 0 412 4460 0 663020 0 0 0 0 1098 254 15 85 0 0 1 0 412 5376 0 660936 0 0 0 78932 1073 279 14 86 0 0 1 0 412 5376 0 662124 0 0 0 17 1147 267 18 82 0 0 2 0 412 5376 0 661580 0 0 44 31901 1052 286 15 85 0 0 1 0 412 5440 0 661740 0 0 48 47048 1168 265 15 85 0 0 1 0 412 5312 0 662152 0 0 4 14 1048 260 16 84 0 0 1 0 412 4664 0 662196 0 0 4 78941 1143 282 15 85 0 0 2 0 412 4600 0 662932 0 0 0 0 1104 251 14 86 0 0 1 0 412 5048 0 661448 0 0 0 78954 1111 269 16 84 0 0 1 0 412 5368 0 662120 0 0 0 0 1140 250 17 83 0 0 1 0 412 5432 0 660648 0 0 0 78928 1075 260 16 84 0 0 1 0 412 5176 0 662224 0 0 4 0 1217 266 14 86 0 0 1 0 412 5432 0 662104 0 0 0 0 1078 274 16 84 0 0 1 0 412 4984 0 662084 0 0 0 78932 1189 245 12 88 0 0 1 0 412 5440 0 662012 0 0 0 13 1080 271 17 83 0 0 1 0 412 5440 0 661168 0 0 0 78928 1109 242 14 86 0 0 1 0 412 5248 0 662232 0 0 0 0 1104 270 13 87 0 0 Remotely (writing over NFS, using NFS v3, not using direct I/O) vmstat output: procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 1 0 596 4624 0 662460 0 0 0 448 4037 1099 1 99 0 0 1 0 596 4796 0 661564 0 0 0 96067 2877 788 1 75 0 24 0 0 596 5496 0 661692 0 0 0 160 2297 517 0 44 56 0 1 0 596 4824 0 662840 0 0 24 633 3896 1147 1 98 1 0 1 0 596 4696 0 662536 0 0 0 416 3987 1075 1 99 0 0 1 0 596 4892 0 662344 0 0 0 448 3746 1142 0 99 1 0 0 0 596 5868 0 660468 0 0 0 96064 3550 973 1 97 1 1 2 0 596 4600 0 663328 0 0 0 318 3390 823 1 71 28 0 1 0 596 5432 0 662336 0 0 0 448 3872 1066 0 100 0 0 1 0 596 5360 0 661888 0 0 0 453 3951 1144 1 99 0 0 1 0 596 4936 0 661568 0 0 0 94225 2942 726 0 75 7 18 1 0 596 4528 0 662944 0 0 0 259 2984 738 1 64 35 0 1 0 596 5368 0 661864 0 0 8 639 4234 1116 1 99 0 0 2 0 596 5368 0 662140 0 0 0 448 3919 1086 0 100 0 0 0 0 596 5512 0 662860 0 0 4 256 2747 650 0 56 43 1 0 0 596 5520 0 662860 0 0 0 0 1061 144 3 2 95 0 1 0 596 4688 0 663404 0 0 0 64 1455 312 0 13 87 0 1 0 596 5324 0 661964 32 0 40 96489 3325 921 1 88 11 0 1 0 596 4656 0 662852 24 0 144 1093 2228 650 1 38 58 3 1 0 596 4592 0 662648 0 0 0 448 3852 1098 0 99 1 0 1 0 596 5304 0 662232 0 0 0 448 3972 1100 1 99 0 0 ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP 2005-01-17 20:06 Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP Justin Piszcz @ 2005-01-17 20:48 ` Norbert van Nobelen 2005-01-17 20:56 ` Justin Piszcz 0 siblings, 1 reply; 6+ messages in thread From: Norbert van Nobelen @ 2005-01-17 20:48 UTC (permalink / raw) To: Justin Piszcz; +Cc: linux-kernel Only with NFS? I have a raid array of the same discs and the system just sometimes seems to hang completely (for a second or less) and then to go on again at a normal speed (110MB/s). I am running a SuSE 9.1 stock kernel (2.6.5-7.111-smp) on that machine. On Monday 17 January 2005 21:06, you wrote: > When writing to or from the drive via NFS, after 1GB or 2GB, it "feels" > like the system slows to a crawl, the mouse gets very slow, almost like > one is burning a CD at 52X under PIO mode. I originally had this disk in > my main system with an Intel ICH5 chipset (ABIT IC7-G mobo) and a Pentium > 4 2.6GHZ w/HT and I could not believe the hit the system took when writing > over NFS. > > I put the drive on its own controller in another box to see if I could > replicate the problem. The drive is on a Promise 150TX2 Plus controller. > When writing locally on the disk, there is no problem. When writing to or > from the drive over NFS, the system becomes _very_ slow, df -h lags, the > system slows almost to a halt. I check /proc/interrupts and > /var/log/messages but no errors result. > > There is some type of system bottleneck when using NFS with this drive. > > All the file systems are XFS on all systems. > Can anyone offer any suggestions? > I cannot explain or find the cause of this. > > All systems are running 2.6.10. > > I have an excerpt of both using dd if=/dev/zero of=file.img (locally) and > from a remote computer (on a full duplex gigabit network) > > Locally: dd if=/dev/zero of=out.img > > vmstat output: > > procs -----------memory---------- ---swap-- -----io---- --system-- > ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy > id wa > 1 0 412 4928 0 662612 0 0 0 0 1065 285 16 84 > 0 0 > 1 0 412 4608 0 662556 0 0 0 78932 1148 250 14 86 > 0 0 > 1 0 412 4672 0 662868 0 0 0 13 1068 274 16 84 > 0 0 > 1 0 412 5120 0 661644 0 0 0 78928 1116 245 13 87 > 0 0 > 1 0 412 4460 0 663020 0 0 0 0 1098 254 15 85 > 0 0 > 1 0 412 5376 0 660936 0 0 0 78932 1073 279 14 86 > 0 0 > 1 0 412 5376 0 662124 0 0 0 17 1147 267 18 82 > 0 0 > 2 0 412 5376 0 661580 0 0 44 31901 1052 286 15 85 > 0 0 > 1 0 412 5440 0 661740 0 0 48 47048 1168 265 15 85 > 0 0 > 1 0 412 5312 0 662152 0 0 4 14 1048 260 16 84 > 0 0 > 1 0 412 4664 0 662196 0 0 4 78941 1143 282 15 85 > 0 0 > 2 0 412 4600 0 662932 0 0 0 0 1104 251 14 86 > 0 0 > 1 0 412 5048 0 661448 0 0 0 78954 1111 269 16 84 > 0 0 > 1 0 412 5368 0 662120 0 0 0 0 1140 250 17 83 > 0 0 > 1 0 412 5432 0 660648 0 0 0 78928 1075 260 16 84 > 0 0 > 1 0 412 5176 0 662224 0 0 4 0 1217 266 14 86 > 0 0 > 1 0 412 5432 0 662104 0 0 0 0 1078 274 16 84 > 0 0 > 1 0 412 4984 0 662084 0 0 0 78932 1189 245 12 88 > 0 0 > 1 0 412 5440 0 662012 0 0 0 13 1080 271 17 83 > 0 0 > 1 0 412 5440 0 661168 0 0 0 78928 1109 242 14 86 > 0 0 > 1 0 412 5248 0 662232 0 0 0 0 1104 270 13 87 > 0 0 > > Remotely (writing over NFS, using NFS v3, not using direct I/O) > > vmstat output: > > procs -----------memory---------- ---swap-- -----io---- --system-- > ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy > id wa > 1 0 596 4624 0 662460 0 0 0 448 4037 1099 1 99 > 0 0 > 1 0 596 4796 0 661564 0 0 0 96067 2877 788 1 75 > 0 24 > 0 0 596 5496 0 661692 0 0 0 160 2297 517 0 44 > 56 0 > 1 0 596 4824 0 662840 0 0 24 633 3896 1147 1 98 > 1 0 > 1 0 596 4696 0 662536 0 0 0 416 3987 1075 1 99 > 0 0 > 1 0 596 4892 0 662344 0 0 0 448 3746 1142 0 99 > 1 0 > 0 0 596 5868 0 660468 0 0 0 96064 3550 973 1 97 > 1 1 > 2 0 596 4600 0 663328 0 0 0 318 3390 823 1 71 > 28 0 > 1 0 596 5432 0 662336 0 0 0 448 3872 1066 0 100 > 0 0 > 1 0 596 5360 0 661888 0 0 0 453 3951 1144 1 99 > 0 0 > 1 0 596 4936 0 661568 0 0 0 94225 2942 726 0 75 > 7 18 > 1 0 596 4528 0 662944 0 0 0 259 2984 738 1 64 > 35 0 > 1 0 596 5368 0 661864 0 0 8 639 4234 1116 1 99 > 0 0 > 2 0 596 5368 0 662140 0 0 0 448 3919 1086 0 100 > 0 0 > 0 0 596 5512 0 662860 0 0 4 256 2747 650 0 56 > 43 1 > 0 0 596 5520 0 662860 0 0 0 0 1061 144 3 2 > 95 0 > 1 0 596 4688 0 663404 0 0 0 64 1455 312 0 13 > 87 0 > 1 0 596 5324 0 661964 32 0 40 96489 3325 921 1 88 > 11 0 > 1 0 596 4656 0 662852 24 0 144 1093 2228 650 1 38 > 58 3 > 1 0 596 4592 0 662648 0 0 0 448 3852 1098 0 99 > 1 0 > 1 0 596 5304 0 662232 0 0 0 448 3972 1100 1 99 > 0 0 > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Re: Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP 2005-01-17 20:48 ` Norbert van Nobelen @ 2005-01-17 20:56 ` Justin Piszcz 2005-01-17 21:09 ` omes 0 siblings, 1 reply; 6+ messages in thread From: Justin Piszcz @ 2005-01-17 20:56 UTC (permalink / raw) To: Norbert van Nobelen; +Cc: linux-kernel Yes, only with NFS. On Mon, 17 Jan 2005, Norbert van Nobelen wrote: > Only with NFS? I have a raid array of the same discs and the system just > sometimes seems to hang completely (for a second or less) and then to go on > again at a normal speed (110MB/s). > I am running a SuSE 9.1 stock kernel (2.6.5-7.111-smp) on that machine. > > On Monday 17 January 2005 21:06, you wrote: >> When writing to or from the drive via NFS, after 1GB or 2GB, it "feels" >> like the system slows to a crawl, the mouse gets very slow, almost like >> one is burning a CD at 52X under PIO mode. I originally had this disk in >> my main system with an Intel ICH5 chipset (ABIT IC7-G mobo) and a Pentium >> 4 2.6GHZ w/HT and I could not believe the hit the system took when writing >> over NFS. >> >> I put the drive on its own controller in another box to see if I could >> replicate the problem. The drive is on a Promise 150TX2 Plus controller. >> When writing locally on the disk, there is no problem. When writing to or >> from the drive over NFS, the system becomes _very_ slow, df -h lags, the >> system slows almost to a halt. I check /proc/interrupts and >> /var/log/messages but no errors result. >> >> There is some type of system bottleneck when using NFS with this drive. >> >> All the file systems are XFS on all systems. >> Can anyone offer any suggestions? >> I cannot explain or find the cause of this. >> >> All systems are running 2.6.10. >> >> I have an excerpt of both using dd if=/dev/zero of=file.img (locally) and >> from a remote computer (on a full duplex gigabit network) >> >> Locally: dd if=/dev/zero of=out.img >> >> vmstat output: >> >> procs -----------memory---------- ---swap-- -----io---- --system-- >> ----cpu---- >> r b swpd free buff cache si so bi bo in cs us sy >> id wa >> 1 0 412 4928 0 662612 0 0 0 0 1065 285 16 84 >> 0 0 >> 1 0 412 4608 0 662556 0 0 0 78932 1148 250 14 86 >> 0 0 >> 1 0 412 4672 0 662868 0 0 0 13 1068 274 16 84 >> 0 0 >> 1 0 412 5120 0 661644 0 0 0 78928 1116 245 13 87 >> 0 0 >> 1 0 412 4460 0 663020 0 0 0 0 1098 254 15 85 >> 0 0 >> 1 0 412 5376 0 660936 0 0 0 78932 1073 279 14 86 >> 0 0 >> 1 0 412 5376 0 662124 0 0 0 17 1147 267 18 82 >> 0 0 >> 2 0 412 5376 0 661580 0 0 44 31901 1052 286 15 85 >> 0 0 >> 1 0 412 5440 0 661740 0 0 48 47048 1168 265 15 85 >> 0 0 >> 1 0 412 5312 0 662152 0 0 4 14 1048 260 16 84 >> 0 0 >> 1 0 412 4664 0 662196 0 0 4 78941 1143 282 15 85 >> 0 0 >> 2 0 412 4600 0 662932 0 0 0 0 1104 251 14 86 >> 0 0 >> 1 0 412 5048 0 661448 0 0 0 78954 1111 269 16 84 >> 0 0 >> 1 0 412 5368 0 662120 0 0 0 0 1140 250 17 83 >> 0 0 >> 1 0 412 5432 0 660648 0 0 0 78928 1075 260 16 84 >> 0 0 >> 1 0 412 5176 0 662224 0 0 4 0 1217 266 14 86 >> 0 0 >> 1 0 412 5432 0 662104 0 0 0 0 1078 274 16 84 >> 0 0 >> 1 0 412 4984 0 662084 0 0 0 78932 1189 245 12 88 >> 0 0 >> 1 0 412 5440 0 662012 0 0 0 13 1080 271 17 83 >> 0 0 >> 1 0 412 5440 0 661168 0 0 0 78928 1109 242 14 86 >> 0 0 >> 1 0 412 5248 0 662232 0 0 0 0 1104 270 13 87 >> 0 0 >> >> Remotely (writing over NFS, using NFS v3, not using direct I/O) >> >> vmstat output: >> >> procs -----------memory---------- ---swap-- -----io---- --system-- >> ----cpu---- >> r b swpd free buff cache si so bi bo in cs us sy >> id wa >> 1 0 596 4624 0 662460 0 0 0 448 4037 1099 1 99 >> 0 0 >> 1 0 596 4796 0 661564 0 0 0 96067 2877 788 1 75 >> 0 24 >> 0 0 596 5496 0 661692 0 0 0 160 2297 517 0 44 >> 56 0 >> 1 0 596 4824 0 662840 0 0 24 633 3896 1147 1 98 >> 1 0 >> 1 0 596 4696 0 662536 0 0 0 416 3987 1075 1 99 >> 0 0 >> 1 0 596 4892 0 662344 0 0 0 448 3746 1142 0 99 >> 1 0 >> 0 0 596 5868 0 660468 0 0 0 96064 3550 973 1 97 >> 1 1 >> 2 0 596 4600 0 663328 0 0 0 318 3390 823 1 71 >> 28 0 >> 1 0 596 5432 0 662336 0 0 0 448 3872 1066 0 100 >> 0 0 >> 1 0 596 5360 0 661888 0 0 0 453 3951 1144 1 99 >> 0 0 >> 1 0 596 4936 0 661568 0 0 0 94225 2942 726 0 75 >> 7 18 >> 1 0 596 4528 0 662944 0 0 0 259 2984 738 1 64 >> 35 0 >> 1 0 596 5368 0 661864 0 0 8 639 4234 1116 1 99 >> 0 0 >> 2 0 596 5368 0 662140 0 0 0 448 3919 1086 0 100 >> 0 0 >> 0 0 596 5512 0 662860 0 0 4 256 2747 650 0 56 >> 43 1 >> 0 0 596 5520 0 662860 0 0 0 0 1061 144 3 2 >> 95 0 >> 1 0 596 4688 0 663404 0 0 0 64 1455 312 0 13 >> 87 0 >> 1 0 596 5324 0 661964 32 0 40 96489 3325 921 1 88 >> 11 0 >> 1 0 596 4656 0 662852 24 0 144 1093 2228 650 1 38 >> 58 3 >> 1 0 596 4592 0 662648 0 0 0 448 3852 1098 0 99 >> 1 0 >> 1 0 596 5304 0 662232 0 0 0 448 3972 1100 1 99 >> 0 0 >> >> - >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP 2005-01-17 20:56 ` Justin Piszcz @ 2005-01-17 21:09 ` omes 2005-01-17 21:34 ` Manu Abraham 0 siblings, 1 reply; 6+ messages in thread From: omes @ 2005-01-17 21:09 UTC (permalink / raw) To: linux-kernel I have the same problem as you. At least our problems are much alike. I got two Western digital hard disks. One 120GB 7200RPM 2MB Cache IDE, and one 80GB 7200 2MB Cache IDE. I get high loads when reading large files for some time, as well as when copying from one partition to another. All my partitions are in ext3, and i'm running 2.6.10. hdparm tests resulted in normal readings however. And when just reading small files the system looks and feels normal. What motherboard have you got? Regards, - omes On Monday 17 January 2005 21:56, you wrote: > Yes, only with NFS. > > On Mon, 17 Jan 2005, Norbert van Nobelen wrote: > > Only with NFS? I have a raid array of the same discs and the system just > > sometimes seems to hang completely (for a second or less) and then to go > > on again at a normal speed (110MB/s). > > I am running a SuSE 9.1 stock kernel (2.6.5-7.111-smp) on that machine. > > > > On Monday 17 January 2005 21:06, you wrote: > >> When writing to or from the drive via NFS, after 1GB or 2GB, it "feels" > >> like the system slows to a crawl, the mouse gets very slow, almost like > >> one is burning a CD at 52X under PIO mode. I originally had this disk > >> in my main system with an Intel ICH5 chipset (ABIT IC7-G mobo) and a > >> Pentium 4 2.6GHZ w/HT and I could not believe the hit the system took > >> when writing over NFS. > >> > >> I put the drive on its own controller in another box to see if I could > >> replicate the problem. The drive is on a Promise 150TX2 Plus > >> controller. When writing locally on the disk, there is no problem. When > >> writing to or from the drive over NFS, the system becomes _very_ slow, > >> df -h lags, the system slows almost to a halt. I check /proc/interrupts > >> and > >> /var/log/messages but no errors result. > >> > >> There is some type of system bottleneck when using NFS with this drive. > >> > >> All the file systems are XFS on all systems. > >> Can anyone offer any suggestions? > >> I cannot explain or find the cause of this. > >> > >> All systems are running 2.6.10. > >> > >> I have an excerpt of both using dd if=/dev/zero of=file.img (locally) > >> and from a remote computer (on a full duplex gigabit network) > >> > >> Locally: dd if=/dev/zero of=out.img > >> > >> vmstat output: > >> > >> procs -----------memory---------- ---swap-- -----io---- --system-- > >> ----cpu---- > >> r b swpd free buff cache si so bi bo in cs us > >> sy id wa > >> 1 0 412 4928 0 662612 0 0 0 0 1065 285 16 > >> 84 0 0 > >> 1 0 412 4608 0 662556 0 0 0 78932 1148 250 14 > >> 86 0 0 > >> 1 0 412 4672 0 662868 0 0 0 13 1068 274 16 > >> 84 0 0 > >> 1 0 412 5120 0 661644 0 0 0 78928 1116 245 13 > >> 87 0 0 > >> 1 0 412 4460 0 663020 0 0 0 0 1098 254 15 > >> 85 0 0 > >> 1 0 412 5376 0 660936 0 0 0 78932 1073 279 14 > >> 86 0 0 > >> 1 0 412 5376 0 662124 0 0 0 17 1147 267 18 > >> 82 0 0 > >> 2 0 412 5376 0 661580 0 0 44 31901 1052 286 15 > >> 85 0 0 > >> 1 0 412 5440 0 661740 0 0 48 47048 1168 265 15 > >> 85 0 0 > >> 1 0 412 5312 0 662152 0 0 4 14 1048 260 16 > >> 84 0 0 > >> 1 0 412 4664 0 662196 0 0 4 78941 1143 282 15 > >> 85 0 0 > >> 2 0 412 4600 0 662932 0 0 0 0 1104 251 14 > >> 86 0 0 > >> 1 0 412 5048 0 661448 0 0 0 78954 1111 269 16 > >> 84 0 0 > >> 1 0 412 5368 0 662120 0 0 0 0 1140 250 17 > >> 83 0 0 > >> 1 0 412 5432 0 660648 0 0 0 78928 1075 260 16 > >> 84 0 0 > >> 1 0 412 5176 0 662224 0 0 4 0 1217 266 14 > >> 86 0 0 > >> 1 0 412 5432 0 662104 0 0 0 0 1078 274 16 > >> 84 0 0 > >> 1 0 412 4984 0 662084 0 0 0 78932 1189 245 12 > >> 88 0 0 > >> 1 0 412 5440 0 662012 0 0 0 13 1080 271 17 > >> 83 0 0 > >> 1 0 412 5440 0 661168 0 0 0 78928 1109 242 14 > >> 86 0 0 > >> 1 0 412 5248 0 662232 0 0 0 0 1104 270 13 > >> 87 0 0 > >> > >> Remotely (writing over NFS, using NFS v3, not using direct I/O) > >> > >> vmstat output: > >> > >> procs -----------memory---------- ---swap-- -----io---- --system-- > >> ----cpu---- > >> r b swpd free buff cache si so bi bo in cs us > >> sy id wa > >> 1 0 596 4624 0 662460 0 0 0 448 4037 1099 1 > >> 99 0 0 > >> 1 0 596 4796 0 661564 0 0 0 96067 2877 788 1 > >> 75 0 24 > >> 0 0 596 5496 0 661692 0 0 0 160 2297 517 0 > >> 44 56 0 > >> 1 0 596 4824 0 662840 0 0 24 633 3896 1147 1 > >> 98 1 0 > >> 1 0 596 4696 0 662536 0 0 0 416 3987 1075 1 > >> 99 0 0 > >> 1 0 596 4892 0 662344 0 0 0 448 3746 1142 0 > >> 99 1 0 > >> 0 0 596 5868 0 660468 0 0 0 96064 3550 973 1 > >> 97 1 1 > >> 2 0 596 4600 0 663328 0 0 0 318 3390 823 1 > >> 71 28 0 > >> 1 0 596 5432 0 662336 0 0 0 448 3872 1066 0 > >> 100 0 0 > >> 1 0 596 5360 0 661888 0 0 0 453 3951 1144 1 > >> 99 0 0 > >> 1 0 596 4936 0 661568 0 0 0 94225 2942 726 0 > >> 75 7 18 > >> 1 0 596 4528 0 662944 0 0 0 259 2984 738 1 > >> 64 35 0 > >> 1 0 596 5368 0 661864 0 0 8 639 4234 1116 1 > >> 99 0 0 > >> 2 0 596 5368 0 662140 0 0 0 448 3919 1086 0 > >> 100 0 0 > >> 0 0 596 5512 0 662860 0 0 4 256 2747 650 0 > >> 56 43 1 > >> 0 0 596 5520 0 662860 0 0 0 0 1061 144 3 > >> 2 95 0 > >> 1 0 596 4688 0 663404 0 0 0 64 1455 312 0 > >> 13 87 0 > >> 1 0 596 5324 0 661964 32 0 40 96489 3325 921 1 > >> 88 11 0 > >> 1 0 596 4656 0 662852 24 0 144 1093 2228 650 1 > >> 38 58 3 > >> 1 0 596 4592 0 662648 0 0 0 448 3852 1098 0 > >> 99 1 0 > >> 1 0 596 5304 0 662232 0 0 0 448 3972 1100 1 > >> 99 0 0 > >> > >> - > >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" > >> in the body of a message to majordomo@vger.kernel.org > >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >> Please read the FAQ at http://www.tux.org/lkml/ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP 2005-01-17 21:09 ` omes @ 2005-01-17 21:34 ` Manu Abraham [not found] ` <200501180005.59716.omes@omes.org> 0 siblings, 1 reply; 6+ messages in thread From: Manu Abraham @ 2005-01-17 21:34 UTC (permalink / raw) To: linux-kernel omes wrote: > I have the same problem as you. At least our problems are much alike. I got > two Western digital hard disks. One 120GB 7200RPM 2MB Cache IDE, and one 80GB > 7200 2MB Cache IDE. I get high loads when reading large files for some time, > as well as when copying from one partition to another. All my partitions are > in ext3, and i'm running 2.6.10. > I have a similar problem. I am running 2.6.9 on FC3 not the stock kernel, but a vanilla kernel. I have 3 NFS shares mounted on this 2.6.9 machine (ASUS P4C800 ICH5 motherboard with 1024 MB RAM and sk98lin gigabit LOM (non-functional since thesk98lin driver broke apart) so i use an additional 3Com 3C59x 100 Mbps adapter, with a nvidia VGA adapter, but no nvidia modules but only VESAFB at 1024x768. If i try to read/write some files from the NFS share maybe something around 10Megs or more, everything starts to crawl.. What i mean to say is not the n/w activity, but the console itself. Whatever i do later on, that effect seems to persist, without a reboot. This looks more or less consistent, but not always. I was wondering what could be causing this. Previously i had 2.6.7 on FC2 without any problems, on another machine i have Suse 9.1 with the default kernel, without any problems. In my case i have a 160GB Seagate SATA drive. Manu > hdparm tests resulted in normal readings however. And when just reading small > files the system looks and feels normal. > > What motherboard have you got? > > Regards, > - omes > On Monday 17 January 2005 21:56, you wrote: > >>Yes, only with NFS. >> >>On Mon, 17 Jan 2005, Norbert van Nobelen wrote: >> >>>Only with NFS? I have a raid array of the same discs and the system just >>>sometimes seems to hang completely (for a second or less) and then to go >>>on again at a normal speed (110MB/s). >>>I am running a SuSE 9.1 stock kernel (2.6.5-7.111-smp) on that machine. >>> >>>On Monday 17 January 2005 21:06, you wrote: >>> >>>>When writing to or from the drive via NFS, after 1GB or 2GB, it "feels" >>>>like the system slows to a crawl, the mouse gets very slow, almost like >>>>one is burning a CD at 52X under PIO mode. I originally had this disk >>>>in my main system with an Intel ICH5 chipset (ABIT IC7-G mobo) and a >>>>Pentium 4 2.6GHZ w/HT and I could not believe the hit the system took >>>>when writing over NFS. >>>> >>>>I put the drive on its own controller in another box to see if I could >>>>replicate the problem. The drive is on a Promise 150TX2 Plus >>>>controller. When writing locally on the disk, there is no problem. When >>>>writing to or from the drive over NFS, the system becomes _very_ slow, >>>>df -h lags, the system slows almost to a halt. I check /proc/interrupts >>>>and >>>>/var/log/messages but no errors result. >>>> >>>>There is some type of system bottleneck when using NFS with this drive. >>>> >>>>All the file systems are XFS on all systems. >>>>Can anyone offer any suggestions? >>>>I cannot explain or find the cause of this. >>>> >>>>All systems are running 2.6.10. >>>> >>>>I have an excerpt of both using dd if=/dev/zero of=file.img (locally) >>>>and from a remote computer (on a full duplex gigabit network) >>>> >>>>Locally: dd if=/dev/zero of=out.img >>>> >>>>vmstat output: >>>> >>>>procs -----------memory---------- ---swap-- -----io---- --system-- >>>>----cpu---- >>>> r b swpd free buff cache si so bi bo in cs us >>>>sy id wa >>>> 1 0 412 4928 0 662612 0 0 0 0 1065 285 16 >>>>84 0 0 >>>> 1 0 412 4608 0 662556 0 0 0 78932 1148 250 14 >>>>86 0 0 >>>> 1 0 412 4672 0 662868 0 0 0 13 1068 274 16 >>>>84 0 0 >>>> 1 0 412 5120 0 661644 0 0 0 78928 1116 245 13 >>>>87 0 0 >>>> 1 0 412 4460 0 663020 0 0 0 0 1098 254 15 >>>>85 0 0 >>>> 1 0 412 5376 0 660936 0 0 0 78932 1073 279 14 >>>>86 0 0 >>>> 1 0 412 5376 0 662124 0 0 0 17 1147 267 18 >>>>82 0 0 >>>> 2 0 412 5376 0 661580 0 0 44 31901 1052 286 15 >>>>85 0 0 >>>> 1 0 412 5440 0 661740 0 0 48 47048 1168 265 15 >>>>85 0 0 >>>> 1 0 412 5312 0 662152 0 0 4 14 1048 260 16 >>>>84 0 0 >>>> 1 0 412 4664 0 662196 0 0 4 78941 1143 282 15 >>>>85 0 0 >>>> 2 0 412 4600 0 662932 0 0 0 0 1104 251 14 >>>>86 0 0 >>>> 1 0 412 5048 0 661448 0 0 0 78954 1111 269 16 >>>>84 0 0 >>>> 1 0 412 5368 0 662120 0 0 0 0 1140 250 17 >>>>83 0 0 >>>> 1 0 412 5432 0 660648 0 0 0 78928 1075 260 16 >>>>84 0 0 >>>> 1 0 412 5176 0 662224 0 0 4 0 1217 266 14 >>>>86 0 0 >>>> 1 0 412 5432 0 662104 0 0 0 0 1078 274 16 >>>>84 0 0 >>>> 1 0 412 4984 0 662084 0 0 0 78932 1189 245 12 >>>>88 0 0 >>>> 1 0 412 5440 0 662012 0 0 0 13 1080 271 17 >>>>83 0 0 >>>> 1 0 412 5440 0 661168 0 0 0 78928 1109 242 14 >>>>86 0 0 >>>> 1 0 412 5248 0 662232 0 0 0 0 1104 270 13 >>>>87 0 0 >>>> >>>>Remotely (writing over NFS, using NFS v3, not using direct I/O) >>>> >>>>vmstat output: >>>> >>>>procs -----------memory---------- ---swap-- -----io---- --system-- >>>>----cpu---- >>>> r b swpd free buff cache si so bi bo in cs us >>>>sy id wa >>>> 1 0 596 4624 0 662460 0 0 0 448 4037 1099 1 >>>>99 0 0 >>>> 1 0 596 4796 0 661564 0 0 0 96067 2877 788 1 >>>>75 0 24 >>>> 0 0 596 5496 0 661692 0 0 0 160 2297 517 0 >>>>44 56 0 >>>> 1 0 596 4824 0 662840 0 0 24 633 3896 1147 1 >>>>98 1 0 >>>> 1 0 596 4696 0 662536 0 0 0 416 3987 1075 1 >>>>99 0 0 >>>> 1 0 596 4892 0 662344 0 0 0 448 3746 1142 0 >>>>99 1 0 >>>> 0 0 596 5868 0 660468 0 0 0 96064 3550 973 1 >>>>97 1 1 >>>> 2 0 596 4600 0 663328 0 0 0 318 3390 823 1 >>>>71 28 0 >>>> 1 0 596 5432 0 662336 0 0 0 448 3872 1066 0 >>>>100 0 0 >>>> 1 0 596 5360 0 661888 0 0 0 453 3951 1144 1 >>>>99 0 0 >>>> 1 0 596 4936 0 661568 0 0 0 94225 2942 726 0 >>>>75 7 18 >>>> 1 0 596 4528 0 662944 0 0 0 259 2984 738 1 >>>>64 35 0 >>>> 1 0 596 5368 0 661864 0 0 8 639 4234 1116 1 >>>>99 0 0 >>>> 2 0 596 5368 0 662140 0 0 0 448 3919 1086 0 >>>>100 0 0 >>>> 0 0 596 5512 0 662860 0 0 4 256 2747 650 0 >>>>56 43 1 >>>> 0 0 596 5520 0 662860 0 0 0 0 1061 144 3 >>>>2 95 0 >>>> 1 0 596 4688 0 663404 0 0 0 64 1455 312 0 >>>>13 87 0 >>>> 1 0 596 5324 0 661964 32 0 40 96489 3325 921 1 >>>>88 11 0 >>>> 1 0 596 4656 0 662852 24 0 144 1093 2228 650 1 >>>>38 58 3 >>>> 1 0 596 4592 0 662648 0 0 0 448 3852 1098 0 >>>>99 1 0 >>>> 1 0 596 5304 0 662232 0 0 0 448 3972 1100 1 >>>>99 0 0 >>>> >>>>- >>>>To unsubscribe from this list: send the line "unsubscribe linux-kernel" >>>>in the body of a message to majordomo@vger.kernel.org >>>>More majordomo info at http://vger.kernel.org/majordomo-info.html >>>>Please read the FAQ at http://www.tux.org/lkml/ > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > > > ^ permalink raw reply [flat|nested] 6+ messages in thread
[parent not found: <200501180005.59716.omes@omes.org>]
* Re: Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP [not found] ` <200501180005.59716.omes@omes.org> @ 2005-01-18 8:51 ` Manu Abraham 0 siblings, 0 replies; 6+ messages in thread From: Manu Abraham @ 2005-01-18 8:51 UTC (permalink / raw) To: omes, linux-kernel omes wrote: > I suddenly couldn't send to the mailinglist any longer.. I'm going back to > 2.4.28 for now. My 4GB of RAM support was already turned off.. Good luck > further. Here is my mail: > > On Monday 17 January 2005 22:34, you wrote: > >>omes wrote: >> >>>I have the same problem as you. At least our problems are much alike. I >>>got two Western digital hard disks. One 120GB 7200RPM 2MB Cache IDE, and >>>one 80GB 7200 2MB Cache IDE. I get high loads when reading large files >>>for some time, as well as when copying from one partition to another. All >>>my partitions are in ext3, and i'm running 2.6.10. >> >>I have a similar problem. I am running 2.6.9 on FC3 not the stock >>kernel, but a vanilla kernel. >>I have 3 NFS shares mounted on this 2.6.9 machine (ASUS P4C800 ICH5 >>motherboard with 1024 MB RAM and sk98lin gigabit LOM (non-functional >>since thesk98lin driver broke apart) so i use an additional 3Com 3C59x >>100 Mbps adapter, with a nvidia VGA adapter, but no nvidia modules but >>only VESAFB at 1024x768. > > This is the same series as i got P4C800/P4P800.. > > Gabriel worte this in an earlier post: > "The performance issues (below) where due to a strange bug in the kernel > VM triggered by the motherboard BIOS. This affects Asus P4P800 > motherboards(-MX and -VM tested) with more that 1 GB RAM. The built-in I have exactly 1GB. > VGA can use 1-32 MB RAM for display but configured with less than 16 MB > of video RAM the board will behave EXTREMELY poor in linux (2.6.9 also > tested to behave like this). > I don't have 4GB support, nor do i have shared VGA. I have a nvidia(64M onboard, not shared) card using vesafb. No X either. > There are several ways around this problem, I've just configured the > board with 16 MB of video RAM. Disabling support for 4 GB of RAM works > too but more memory is lost this way. Running FreeBSD is also an option > but we don't like that, don't we ? Memtest86 (1.11) doesn't seems > affected either - but it detects the memory as "single channel" while > memory is installed in dual channel configuration (also confirmed by BIOS). > > If anybody knows what's going on please let me know. Loosing 15 MB of > RAM is not a big deal but I like linux bug-free, fast and stable. > > I'm available to give more details or run some tests if anyone cares. > > Regards, > > Gabriel" (adapted) > > As for the LOM, use this driver comes with the kernel: Device Drivers -> > Networking support -> Ethernet (1000 Mbit) -> Marvell Yukon Chipset / > SysKonnect SK-98xx Support > It was broken when i tried it out on 2.6.7 i think, and i stumbled upon the a post stating about incorrect VPD entries.. So i thought i would wait for things to cool down a bit. Manu ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-01-18 8:52 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2005-01-17 20:06 Mysterious Lag With SATA Maxtor 250GB 7200RPM 16MB Cache Under Linux using NFSv3 UDP Justin Piszcz
2005-01-17 20:48 ` Norbert van Nobelen
2005-01-17 20:56 ` Justin Piszcz
2005-01-17 21:09 ` omes
2005-01-17 21:34 ` Manu Abraham
[not found] ` <200501180005.59716.omes@omes.org>
2005-01-18 8:51 ` Manu Abraham
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