Re: Interrupt using all the CPU
Hi Yes i suspected a bug when i first saw this because of what you say. 100% CPU usage should be noticed. I found out by accident looking at top. I'll see if we can update the system, it's not high priority right now but thank you all for your help. Med vänliga hälsningar Stefan Midjich aka nocturnal [Swehack] http://swehack.se Nikos Vassiliadis wrote: On Tuesday 04 July 2006 13:10, nocturnal wrote: Hi The -m argument exists in 5.3-RELEASE, thank you. I've attached one file with -mio and the other without. With -mio it just output some extra stuff at the beginning so i don't know how much it matters or maybe i did something wrong. I see nothing backing up those numbers... You said it doesn't seem to affect the web server, That everything feels normal. You cannot feel the load using the box, typing, etc, right? In cases where interrupts reach 25%, the load is very easily noticable, that means you have trouble typing...I would say that such a percentage (100%) is false, you wouldn't be able to log in to the box, the kernel itself would have trouble doing something, but interrupt handling. A wild guess would be that you hit a bug. After all 5.3-RELEASE was the first release marked STABLE from the 5 branch. Med vänliga hälsningar Stefan Midjich aka nocturnal [Swehack] http://swehack.se Nikos Vassiliadis wrote: On Tuesday 04 July 2006 11:40, nocturnal wrote: Hi This is what i get, i'm afraid i'm not good at interpreting the results. procs memory pagedisks faults cpu r b w avmfre flt re pi po fr sr ad4 ad6 in sy cs us sy id 1 5 0 274324 36436 26 0 0 0 50 27 0 0 242 149 332 0 88 12 1 5 0 274324 364243 0 0 0 3 0 1 0 338 911 462 0 50 50 1 5 0 274324 364240 0 0 0 0 0 16 0 391 1011 581 0 33 67 1 5 0 274324 364240 0 0 0 3 0 1 0 611 263 877 0 33 67 1 5 0 274324 364240 0 0 0 0 0 1 0 674 128 931 0 75 25 1 5 0 274324 364240 0 0 0 0 0 0 0 563 118 711 0 0 100 1 5 0 274324 364240 0 0 0 0 0 0 0 531 129 702 0 67 33 1 5 0 274324 364240 0 0 0 0 0 0 0 440 118 578 0 50 50 1 6 0 274324 363760 0 0 0 0 0 0 0 563 158 774 0 67 33 1 5 0 274324 362680 0 0 0 0 0 10 0 702 1019 920 0 100 0 1 5 0 274324 362680 0 0 0 0 0 0 0 683 118 872 0 25 75 0 6 0 291460 33800 955 0 0 0 333 0 0 0 783 1423 1069 0 50 50 0 5 0 274324 36240 611 0 0 0 1500 0 0 0 491 567 707 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 717 121 986 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 729 129 923 0 33 67 0 5 0 274324 362400 0 0 0 0 0 0 0 570 118 742 0 50 50 0 5 0 274324 362400 0 0 0 0 0 0 0 568 1381 793 0 33 67 0 5 0 274324 362400 0 0 0 4 0 32 0 716 129 1036 0 75 25 0 5 0 274324 362400 0 0 0 0 0 0 0 745 118 843 0 75 25 0 5 0 274324 362400 0 0 0 0 0 7 0 610 137 820 0 67 33 0 5 0 274324 362400 0 0 0 0 0 0 0 465 174 630 0 0 100 0 5 0 274324 362400 0 0 0 0 0 0 0 327 237 454 0 50 50 0 5 0 274324 362400 0 0 0 0 0 0 0 253 125 323 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 249 127 314 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 240 118 303 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 238 125 301 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 255 129 330 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 258 144 337 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 269 129 358 0 100 0 0 5 0 274324 362360 0 0 0 0 0 2 0 312 527 431 0 100 0 0 5 0 274324 362360 0 0 0 12 0 21 0 287 129 409 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 257 128 331 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 253 118 324 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 248 128 315 0 100 0 0 5 0 274324 362360 0 0 0 0 0 5 0 257 118 333 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 257 118 327 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 294 118 366 0 100 0 Please turn off word wrapping on your mail program when you send such output. Or send as attachment. Well, normal number of interrupts, a lot of time in kernel, quite a few context switches send as attachment "top -n -S -I -d 10" please There is also a -m in 6.x, don't know about 5.3-R, but it would be interesting if it exists from top manual: -mdisplay Display either cpu or io statistics.
Re: Interrupt using all the CPU
On Tuesday 04 July 2006 13:10, nocturnal wrote: > Hi > > The -m argument exists in 5.3-RELEASE, thank you. I've attached one file > with -mio and the other without. With -mio it just output some extra > stuff at the beginning so i don't know how much it matters or maybe i > did something wrong. I see nothing backing up those numbers... You said it doesn't seem to affect the web server, That everything feels normal. You cannot feel the load using the box, typing, etc, right? In cases where interrupts reach 25%, the load is very easily noticable, that means you have trouble typing...I would say that such a percentage (100%) is false, you wouldn't be able to log in to the box, the kernel itself would have trouble doing something, but interrupt handling. A wild guess would be that you hit a bug. After all 5.3-RELEASE was the first release marked STABLE from the 5 branch. > > > > Med vänliga hälsningar > > Stefan Midjich aka nocturnal > [Swehack] http://swehack.se > > Nikos Vassiliadis wrote: > > On Tuesday 04 July 2006 11:40, nocturnal wrote: > >> Hi > >> > >> This is what i get, i'm afraid i'm not good at interpreting the results. > >> > >> procs memory pagedisks faults > >> cpu r b w avmfre flt re pi po fr sr ad4 ad6 in sy cs > >> us sy id > >> 1 5 0 274324 36436 26 0 0 0 50 27 0 0 242 149 332 0 > >> 88 12 > >> 1 5 0 274324 364243 0 0 0 3 0 1 0 338 911 462 0 > >> 50 50 > >> 1 5 0 274324 364240 0 0 0 0 0 16 0 391 1011 581 0 > >> 33 67 > >> 1 5 0 274324 364240 0 0 0 3 0 1 0 611 263 877 0 > >> 33 67 > >> 1 5 0 274324 364240 0 0 0 0 0 1 0 674 128 931 0 > >> 75 25 > >> 1 5 0 274324 364240 0 0 0 0 0 0 0 563 118 711 0 > >> 0 100 > >> 1 5 0 274324 364240 0 0 0 0 0 0 0 531 129 702 0 > >> 67 33 > >> 1 5 0 274324 364240 0 0 0 0 0 0 0 440 118 578 0 > >> 50 50 > >> 1 6 0 274324 363760 0 0 0 0 0 0 0 563 158 774 0 > >> 67 33 > >> 1 5 0 274324 362680 0 0 0 0 0 10 0 702 1019 920 0 > >> 100 0 > >> 1 5 0 274324 362680 0 0 0 0 0 0 0 683 118 872 0 > >> 25 75 > >> 0 6 0 291460 33800 955 0 0 0 333 0 0 0 783 1423 1069 > >> 0 50 50 > >> 0 5 0 274324 36240 611 0 0 0 1500 0 0 0 491 567 707 > >> 0 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 717 121 986 0 > >> 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 729 129 923 0 > >> 33 67 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 570 118 742 0 > >> 50 50 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 568 1381 793 0 > >> 33 67 > >> 0 5 0 274324 362400 0 0 0 4 0 32 0 716 129 1036 > >> 0 75 25 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 745 118 843 0 > >> 75 25 > >> 0 5 0 274324 362400 0 0 0 0 0 7 0 610 137 820 0 > >> 67 33 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 465 174 630 0 > >> 0 100 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 327 237 454 0 > >> 50 50 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 253 125 323 0 > >> 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 249 127 314 0 > >> 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 240 118 303 0 > >> 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 238 125 301 0 > >> 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 255 129 330 0 > >> 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 258 144 337 0 > >> 100 0 > >> 0 5 0 274324 362400 0 0 0 0 0 0 0 269 129 358 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 0 0 2 0 312 527 431 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 12 0 21 0 287 129 409 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 0 0 0 0 257 128 331 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 0 0 0 0 253 118 324 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 0 0 0 0 248 128 315 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 0 0 5 0 257 118 333 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 0 0 0 0 257 118 327 0 > >> 100 0 > >> 0 5 0 274324 362360 0 0 0 0 0 0 0 294 118 366 0 > >> 100 0 > > > > Please turn off word wrapping on your mail program when > > you send such output. Or send as attachment. Well, normal > > number of interrupts, a lot of time in kernel, quite a few context > > switches > > > > send as attachment "top -n -S -I -d 10" please > > There is also a -m in 6.x, don't know about 5.3-R, but it would be > > interesting if it ex
Re: Interrupt using all the CPU
Hi The -m argument exists in 5.3-RELEASE, thank you. I've attached one file with -mio and the other without. With -mio it just output some extra stuff at the beginning so i don't know how much it matters or maybe i did something wrong. Med vänliga hälsningar Stefan Midjich aka nocturnal [Swehack] http://swehack.se Nikos Vassiliadis wrote: On Tuesday 04 July 2006 11:40, nocturnal wrote: Hi This is what i get, i'm afraid i'm not good at interpreting the results. procs memory pagedisks faults cpu r b w avmfre flt re pi po fr sr ad4 ad6 in sy cs us sy id 1 5 0 274324 36436 26 0 0 0 50 27 0 0 242 149 332 0 88 12 1 5 0 274324 364243 0 0 0 3 0 1 0 338 911 462 0 50 50 1 5 0 274324 364240 0 0 0 0 0 16 0 391 1011 581 0 33 67 1 5 0 274324 364240 0 0 0 3 0 1 0 611 263 877 0 33 67 1 5 0 274324 364240 0 0 0 0 0 1 0 674 128 931 0 75 25 1 5 0 274324 364240 0 0 0 0 0 0 0 563 118 711 0 0 100 1 5 0 274324 364240 0 0 0 0 0 0 0 531 129 702 0 67 33 1 5 0 274324 364240 0 0 0 0 0 0 0 440 118 578 0 50 50 1 6 0 274324 363760 0 0 0 0 0 0 0 563 158 774 0 67 33 1 5 0 274324 362680 0 0 0 0 0 10 0 702 1019 920 0 100 0 1 5 0 274324 362680 0 0 0 0 0 0 0 683 118 872 0 25 75 0 6 0 291460 33800 955 0 0 0 333 0 0 0 783 1423 1069 0 50 50 0 5 0 274324 36240 611 0 0 0 1500 0 0 0 491 567 707 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 717 121 986 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 729 129 923 0 33 67 0 5 0 274324 362400 0 0 0 0 0 0 0 570 118 742 0 50 50 0 5 0 274324 362400 0 0 0 0 0 0 0 568 1381 793 0 33 67 0 5 0 274324 362400 0 0 0 4 0 32 0 716 129 1036 0 75 25 0 5 0 274324 362400 0 0 0 0 0 0 0 745 118 843 0 75 25 0 5 0 274324 362400 0 0 0 0 0 7 0 610 137 820 0 67 33 0 5 0 274324 362400 0 0 0 0 0 0 0 465 174 630 0 0 100 0 5 0 274324 362400 0 0 0 0 0 0 0 327 237 454 0 50 50 0 5 0 274324 362400 0 0 0 0 0 0 0 253 125 323 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 249 127 314 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 240 118 303 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 238 125 301 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 255 129 330 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 258 144 337 0 100 0 0 5 0 274324 362400 0 0 0 0 0 0 0 269 129 358 0 100 0 0 5 0 274324 362360 0 0 0 0 0 2 0 312 527 431 0 100 0 0 5 0 274324 362360 0 0 0 12 0 21 0 287 129 409 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 257 128 331 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 253 118 324 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 248 128 315 0 100 0 0 5 0 274324 362360 0 0 0 0 0 5 0 257 118 333 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 257 118 327 0 100 0 0 5 0 274324 362360 0 0 0 0 0 0 0 294 118 366 0 100 0 Please turn off word wrapping on your mail program when you send such output. Or send as attachment. Well, normal number of interrupts, a lot of time in kernel, quite a few context switches send as attachment "top -n -S -I -d 10" please There is also a -m in 6.x, don't know about 5.3-R, but it would be interesting if it exists from top manual: -mdisplay Display either cpu or io statistics. Default is cpu. last pid: 29582; load averages: 0.01, 0.13, 0.08 up 3+21:29:1412:06:22 114 processes: 2 running, 87 sleeping, 25 waiting Mem: 193M Active, 300M Inact, 99M Wired, 22M Cache, 73M Buf, 5488K Free Swap: 329M Total, 376K Used, 329M Free PID USERNAME VCSW IVCSW READ WRITE FAULT TOTAL PERCENT COMMAND 498 www 49228 98410540 5580122 6242 1.35% httpd 465 www 50096 103518736 2877423 4036 0.88% httpd 489 www 54847 93551771 4688335 5794 1.26% httpd 605 www 48318 89215577 4239112 4928 1.07% httpd 2326 www 46595 104188597 3857150 4604 1.00% httpd 46 root 337454 0830 358189 0 359019 77.88% syncer 2315 www 44607 74767795 4356131 5282 1.15% httpd 19562 www 19505 54030558 1805214 2577 0.56% httpd 16684 www 22848 40500616 1029272 1
Re: Interrupt using all the CPU
On Tuesday 04 July 2006 11:40, nocturnal wrote: > Hi > > This is what i get, i'm afraid i'm not good at interpreting the results. > > procs memory pagedisks faults cpu > r b w avmfre flt re pi po fr sr ad4 ad6 in sy cs us > sy id > 1 5 0 274324 36436 26 0 0 0 50 27 0 0 242 149 332 0 > 88 12 > 1 5 0 274324 364243 0 0 0 3 0 1 0 338 911 462 0 > 50 50 > 1 5 0 274324 364240 0 0 0 0 0 16 0 391 1011 581 0 > 33 67 > 1 5 0 274324 364240 0 0 0 3 0 1 0 611 263 877 0 > 33 67 > 1 5 0 274324 364240 0 0 0 0 0 1 0 674 128 931 0 > 75 25 > 1 5 0 274324 364240 0 0 0 0 0 0 0 563 118 711 0 > 0 100 > 1 5 0 274324 364240 0 0 0 0 0 0 0 531 129 702 0 > 67 33 > 1 5 0 274324 364240 0 0 0 0 0 0 0 440 118 578 0 > 50 50 > 1 6 0 274324 363760 0 0 0 0 0 0 0 563 158 774 0 > 67 33 > 1 5 0 274324 362680 0 0 0 0 0 10 0 702 1019 920 0 > 100 0 > 1 5 0 274324 362680 0 0 0 0 0 0 0 683 118 872 0 > 25 75 > 0 6 0 291460 33800 955 0 0 0 333 0 0 0 783 1423 1069 > 0 50 50 > 0 5 0 274324 36240 611 0 0 0 1500 0 0 0 491 567 707 > 0 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 717 121 986 0 > 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 729 129 923 0 > 33 67 > 0 5 0 274324 362400 0 0 0 0 0 0 0 570 118 742 0 > 50 50 > 0 5 0 274324 362400 0 0 0 0 0 0 0 568 1381 793 0 > 33 67 > 0 5 0 274324 362400 0 0 0 4 0 32 0 716 129 1036 > 0 75 25 > 0 5 0 274324 362400 0 0 0 0 0 0 0 745 118 843 0 > 75 25 > 0 5 0 274324 362400 0 0 0 0 0 7 0 610 137 820 0 > 67 33 > 0 5 0 274324 362400 0 0 0 0 0 0 0 465 174 630 0 > 0 100 > 0 5 0 274324 362400 0 0 0 0 0 0 0 327 237 454 0 > 50 50 > 0 5 0 274324 362400 0 0 0 0 0 0 0 253 125 323 0 > 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 249 127 314 0 > 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 240 118 303 0 > 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 238 125 301 0 > 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 255 129 330 0 > 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 258 144 337 0 > 100 0 > 0 5 0 274324 362400 0 0 0 0 0 0 0 269 129 358 0 > 100 0 > 0 5 0 274324 362360 0 0 0 0 0 2 0 312 527 431 0 > 100 0 > 0 5 0 274324 362360 0 0 0 12 0 21 0 287 129 409 0 > 100 0 > 0 5 0 274324 362360 0 0 0 0 0 0 0 257 128 331 0 > 100 0 > 0 5 0 274324 362360 0 0 0 0 0 0 0 253 118 324 0 > 100 0 > 0 5 0 274324 362360 0 0 0 0 0 0 0 248 128 315 0 > 100 0 > 0 5 0 274324 362360 0 0 0 0 0 5 0 257 118 333 0 > 100 0 > 0 5 0 274324 362360 0 0 0 0 0 0 0 257 118 327 0 > 100 0 > 0 5 0 274324 362360 0 0 0 0 0 0 0 294 118 366 0 > 100 0 > Please turn off word wrapping on your mail program when you send such output. Or send as attachment. Well, normal number of interrupts, a lot of time in kernel, quite a few context switches send as attachment "top -n -S -I -d 10" please There is also a -m in 6.x, don't know about 5.3-R, but it would be interesting if it exists from top manual: -mdisplay Display either cpu or io statistics. Default is cpu. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
Hi
This is what i get, i'm afraid i'm not good at interpreting the results.
procs memory pagedisks faults cpu
r b w avmfre flt re pi po fr sr ad4 ad6 in sy cs us
sy id
1 5 0 274324 36436 26 0 0 0 50 27 0 0 242 149 332 0
88 12
1 5 0 274324 364243 0 0 0 3 0 1 0 338 911 462 0
50 50
1 5 0 274324 364240 0 0 0 0 0 16 0 391 1011 581 0
33 67
1 5 0 274324 364240 0 0 0 3 0 1 0 611 263 877 0
33 67
1 5 0 274324 364240 0 0 0 0 0 1 0 674 128 931 0
75 25
1 5 0 274324 364240 0 0 0 0 0 0 0 563 118 711 0
0 100
1 5 0 274324 364240 0 0 0 0 0 0 0 531 129 702 0
67 33
1 5 0 274324 364240 0 0 0 0 0 0 0 440 118 578 0
50 50
1 6 0 274324 363760 0 0 0 0 0 0 0 563 158 774 0
67 33
1 5 0 274324 362680 0 0 0 0 0 10 0 702 1019 920 0
100 0
1 5 0 274324 362680 0 0 0 0 0 0 0 683 118 872 0
25 75
0 6 0 291460 33800 955 0 0 0 333 0 0 0 783 1423 1069
0 50 50
0 5 0 274324 36240 611 0 0 0 1500 0 0 0 491 567 707
0 100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 717 121 986 0
100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 729 129 923 0
33 67
0 5 0 274324 362400 0 0 0 0 0 0 0 570 118 742 0
50 50
0 5 0 274324 362400 0 0 0 0 0 0 0 568 1381 793 0
33 67
0 5 0 274324 362400 0 0 0 4 0 32 0 716 129 1036
0 75 25
0 5 0 274324 362400 0 0 0 0 0 0 0 745 118 843 0
75 25
0 5 0 274324 362400 0 0 0 0 0 7 0 610 137 820 0
67 33
0 5 0 274324 362400 0 0 0 0 0 0 0 465 174 630 0
0 100
0 5 0 274324 362400 0 0 0 0 0 0 0 327 237 454 0
50 50
0 5 0 274324 362400 0 0 0 0 0 0 0 253 125 323 0
100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 249 127 314 0
100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 240 118 303 0
100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 238 125 301 0
100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 255 129 330 0
100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 258 144 337 0
100 0
0 5 0 274324 362400 0 0 0 0 0 0 0 269 129 358 0
100 0
0 5 0 274324 362360 0 0 0 0 0 2 0 312 527 431 0
100 0
0 5 0 274324 362360 0 0 0 12 0 21 0 287 129 409 0
100 0
0 5 0 274324 362360 0 0 0 0 0 0 0 257 128 331 0
100 0
0 5 0 274324 362360 0 0 0 0 0 0 0 253 118 324 0
100 0
0 5 0 274324 362360 0 0 0 0 0 0 0 248 128 315 0
100 0
0 5 0 274324 362360 0 0 0 0 0 5 0 257 118 333 0
100 0
0 5 0 274324 362360 0 0 0 0 0 0 0 257 118 327 0
100 0
0 5 0 274324 362360 0 0 0 0 0 0 0 294 118 366 0
100 0
Med vänliga hälsningar
Stefan Midjich aka nocturnal
[Swehack] http://swehack.se
Nikos Vassiliadis wrote:
On Tuesday 04 July 2006 09:57, nocturnal wrote:
Hi
kern.clockrate: { hz = 100, tick = 1, profhz = 1024, stathz = 128 }
I'm going to see if it's possible to disable USB from the BIOS later
today, if not, can i disable the USB devices in the kernel?
are you sure you have to?
Try vmstat -w1 to see the number of interrupts as advised by Chuck
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Re: Interrupt using all the CPU
On Tuesday 04 July 2006 09:57, nocturnal wrote:
> Hi
>
> kern.clockrate: { hz = 100, tick = 1, profhz = 1024, stathz = 128 }
>
> I'm going to see if it's possible to disable USB from the BIOS later
> today, if not, can i disable the USB devices in the kernel?
are you sure you have to?
Try vmstat -w1 to see the number of interrupts as advised by Chuck
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Re: Interrupt using all the CPU
Hi
kern.clockrate: { hz = 100, tick = 1, profhz = 1024, stathz = 128 }
I'm going to see if it's possible to disable USB from the BIOS later
today, if not, can i disable the USB devices in the kernel?
Med vänliga hälsningar
Stefan Midjich aka nocturnal
[Swehack] http://swehack.se
Chuck Swiger wrote:
Nikos Vassiliadis wrote:
On Monday 03 July 2006 14:06, Daan Vreeken [PA4DAN] wrote:
[ ... ]
interrupt total rate
irq0: clk 25130235 99
irq1: atkbd0 4 0
irq6: fdc0 1 0
irq7: ppc0 1 0
irq8: rtc 288300 1
irq11: atapci1637852 2
irq12: vr0 uhci0+3890833 15
irq13: npx01 0
irq14: ata0 54 0
Total 29947281119
Hmm.. There seems to be nothing wrong with these numbers. If you were
suffering from an interrupt storm I would have expected much larger
numbers
in the "rate" column. The column "rate" shows the average number of
interrupts / second. In total your system handles about 120 interrupts /
second, so that shouldn't be a problem.
I have the feeling that rate is calculated like this:
number of interrupts since boottime / seconds of uptime
OK.
so, this won't help if his is having now an interrupt storm
while most of the time the system is interrupted ~ 120 times
per second
An interrupt storm on what, though?
The ~100 interrupts per second from the clock on IRQ0 are absolutely
normal with HZ=100; the only other candidate seems to be the combination
of vr0 & USB controller on IRQ 12.
If it's possible to disable the USB controller for a bit in the BIOS, it
would be interesting to see whether that makes any difference. You can
probably kill the parallel port, too.
It's also interesting to note that IRQ 8, the RTC, seems to be mostly
idle-- normally that fires at stathz=128...check "sysctl kern.clockrate".
systat -vmstat $time shows interrupts per second regarding the last
$time seconds
Right, although the output from "vmstat 1" would survive being pasted
into email better, I suspect.
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Re: Interrupt using all the CPU
Nikos Vassiliadis wrote: On Monday 03 July 2006 14:06, Daan Vreeken [PA4DAN] wrote: [ ... ] interrupt total rate irq0: clk 25130235 99 irq1: atkbd0 4 0 irq6: fdc0 1 0 irq7: ppc0 1 0 irq8: rtc 288300 1 irq11: atapci1637852 2 irq12: vr0 uhci0+3890833 15 irq13: npx01 0 irq14: ata0 54 0 Total 29947281119 Hmm.. There seems to be nothing wrong with these numbers. If you were suffering from an interrupt storm I would have expected much larger numbers in the "rate" column. The column "rate" shows the average number of interrupts / second. In total your system handles about 120 interrupts / second, so that shouldn't be a problem. I have the feeling that rate is calculated like this: number of interrupts since boottime / seconds of uptime OK. so, this won't help if his is having now an interrupt storm while most of the time the system is interrupted ~ 120 times per second An interrupt storm on what, though? The ~100 interrupts per second from the clock on IRQ0 are absolutely normal with HZ=100; the only other candidate seems to be the combination of vr0 & USB controller on IRQ 12. If it's possible to disable the USB controller for a bit in the BIOS, it would be interesting to see whether that makes any difference. You can probably kill the parallel port, too. It's also interesting to note that IRQ 8, the RTC, seems to be mostly idle-- normally that fires at stathz=128...check "sysctl kern.clockrate". systat -vmstat $time shows interrupts per second regarding the last $time seconds Right, although the output from "vmstat 1" would survive being pasted into email better, I suspect. -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
On Monday 03 July 2006 14:06, Daan Vreeken [PA4DAN] wrote: > On Monday 03 July 2006 12:26, nocturnal wrote: > > Hi > > > > The clock? > > > > interrupt total rate > > irq0: clk 25130235 99 > > irq1: atkbd0 4 0 > > irq6: fdc0 1 0 > > irq7: ppc0 1 0 > > irq8: rtc 288300 1 > > irq11: atapci1637852 2 > > irq12: vr0 uhci0+3890833 15 > > irq13: npx01 0 > > irq14: ata0 54 0 > > Total 29947281119 > > Hmm.. There seems to be nothing wrong with these numbers. If you were > suffering from an interrupt storm I would have expected much larger numbers > in the "rate" column. The column "rate" shows the average number of > interrupts / second. In total your system handles about 120 interrupts / > second, so that shouldn't be a problem. I have the feeling that rate is calculated like this: number of interrupts since boottime / seconds of uptime so, this won't help if his is having now an interrupt storm while most of the time the system is interrupted ~ 120 times per second systat -vmstat $time shows interrupts per second regarding the last $time seconds ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
Hi I'm sorry for the second e-mail but the uname is. FreeBSD unix.swebase.com 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov 5 04:19:18 UTC 2004 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 We haven't even recompiled the kernel since the install. It was supposed to be a temporary machine but turned into a development machine for me and some other developers. Med vänliga hälsningar Stefan Midjich aka nocturnal [Swehack] http://swehack.se Daan Vreeken [PA4DAN] wrote: On Monday 03 July 2006 12:26, nocturnal wrote: Hi The clock? interrupt total rate irq0: clk 25130235 99 irq1: atkbd0 4 0 irq6: fdc0 1 0 irq7: ppc0 1 0 irq8: rtc 288300 1 irq11: atapci1637852 2 irq12: vr0 uhci0+3890833 15 irq13: npx01 0 irq14: ata0 54 0 Total 29947281119 Hmm.. There seems to be nothing wrong with these numbers. If you were suffering from an interrupt storm I would have expected much larger numbers in the "rate" column. The column "rate" shows the average number of interrupts / second. In total your system handles about 120 interrupts / second, so that shouldn't be a problem. Are you using "powerd" perhaps? Could it be that your system goes into a too deep sleep state where interrupt handling costs significantly more time? grtz, Daan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
Hi No powerd running and i've never heard of that daemon. It's a pretty basic noname machine acting as a small scale webserver and a non-public nameserver. I've asked aroung and nobody can remember how long it's been like this so it's very possible that it's been acting like this since we installed it but i highly doubt it because we've had problems with it in the past and usually when something happens you check top at least once. It doesn't have much traffic either, if you shutdown the webserver the traffic is almost none, mostly arp and DNS traffic. CPU states: 0.0% user, 0.0% nice, 0.0% system, 100% interrupt, 0.0% idle Mem: 130M Active, 355M Inact, 108M Wired, 22M Cache, 73M Buf, 5668K Free Swap: 329M Total, 316K Used, 329M Free This is what it usually looks like, or here in an iostat view, in case it helps. tty ad4 ad6 ast0 cpu tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id 03 28.14 2 0.06 0.57 0 0.00 0.00 0 0.00 0 0 7 83 10 0 227 16.00 1 0.02 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 16.00 11 0.17 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 6.00 1 0.01 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 50 50 0 76 16.00 2 0.03 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 0 77 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0 0 0 100 0 Med vänliga hälsningar Stefan Midjich aka nocturnal [Swehack] http://swehack.se Daan Vreeken [PA4DAN] wrote: On Monday 03 July 2006 12:26, nocturnal wrote: Hi The clock? interrupt total rate irq0: clk 25130235 99 irq1: atkbd0 4 0 irq6: fdc0 1 0 irq7: ppc0 1 0 irq8: rtc 288300 1 irq11: atapci1637852 2 irq12: vr0 uhci0+3890833 15 irq13: npx01 0 irq14: ata0 54 0 Total 29947281119 Hmm.. There seems to be nothing wrong with these numbers. If you were suffering from an interrupt storm I would have expected much larger numbers in the "rate" column. The column "rate" shows the average number of interrupts / second. In total your system handles about 120 interrupts / second, so that shouldn't be a problem. Are you using "powerd" perhaps? Could it be that your system goes into a too deep sleep state where interrupt handling costs significantly more time? grtz, Daan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
On Monday 03 July 2006 12:26, nocturnal wrote: > Hi > > The clock? > > interrupt total rate > irq0: clk 25130235 99 > irq1: atkbd0 4 0 > irq6: fdc0 1 0 > irq7: ppc0 1 0 > irq8: rtc 288300 1 > irq11: atapci1637852 2 > irq12: vr0 uhci0+3890833 15 > irq13: npx01 0 > irq14: ata0 54 0 > Total 29947281119 Hmm.. There seems to be nothing wrong with these numbers. If you were suffering from an interrupt storm I would have expected much larger numbers in the "rate" column. The column "rate" shows the average number of interrupts / second. In total your system handles about 120 interrupts / second, so that shouldn't be a problem. Are you using "powerd" perhaps? Could it be that your system goes into a too deep sleep state where interrupt handling costs significantly more time? grtz, Daan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
Hi The clock? interrupt total rate irq0: clk 25130235 99 irq1: atkbd0 4 0 irq6: fdc0 1 0 irq7: ppc0 1 0 irq8: rtc 288300 1 irq11: atapci1637852 2 irq12: vr0 uhci0+3890833 15 irq13: npx01 0 irq14: ata0 54 0 Total 29947281119 Also, in reply to Fabian Kell; top -S doesn't show me which process is using all the interrupt CPU, thank you for the tip. Med vänliga hälsningar Stefan Midjich aka nocturnal [Swehack] http://swehack.se Daan Vreeken [PA4DAN] wrote: On Monday 03 July 2006 10:38, nocturnal wrote: Hi I'm having a few problems with a webserver. Today the idle was at 0.0 and it's still like this. It doesn't look like it's affecting web services but it looks weird and i'm afraid that the CPU is working it's ass off with something. Of course nothing shows up in top or ps that could indicate which process is taking up all this cpu and since interrupt is the one using it i'm not even sure anything is actually using up CPU since i don't know what interrupt is. Any hints or pointers would be appreciated. It looks like interrupt and system are fighting for percents, interrupt has 100% constantly and as soon as interrupt drops system takes exactly what's left over and sometimes system doesn't do it so idle gets a few percents. It's weird to me simply because i can't find a description of what interrupt shows in top anywhere in the manuals. Try "vmstat -i" to show you what device is causing the interrupts. grtz, Daan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
On Monday 03 July 2006 10:38, nocturnal wrote: > Hi > > I'm having a few problems with a webserver. Today the idle was at 0.0 > and it's still like this. It doesn't look like it's affecting web > services but it looks weird and i'm afraid that the CPU is working it's > ass off with something. Of course nothing shows up in top or ps that > could indicate which process is taking up all this cpu and since > interrupt is the one using it i'm not even sure anything is actually > using up CPU since i don't know what interrupt is. Any hints or pointers > would be appreciated. > > It looks like interrupt and system are fighting for percents, interrupt > has 100% constantly and as soon as interrupt drops system takes exactly > what's left over and sometimes system doesn't do it so idle gets a few > percents. It's weird to me simply because i can't find a description of > what interrupt shows in top anywhere in the manuals. Try "vmstat -i" to show you what device is causing the interrupts. grtz, Daan ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: Interrupt using all the CPU
nocturnal <[EMAIL PROTECTED]> wrote: > I'm having a few problems with a webserver. Today the idle was at 0.0 > and it's still like this. It doesn't look like it's affecting web > services but it looks weird and i'm afraid that the CPU is working > it's ass off with something. Of course nothing shows up in top or ps > that could indicate which process is taking up all this cpu and since > interrupt is the one using it i'm not even sure anything is actually > using up CPU since i don't know what interrupt is. Any hints or > pointers would be appreciated. > > It looks like interrupt and system are fighting for percents, > interrupt has 100% constantly and as soon as interrupt drops system > takes exactly what's left over and sometimes system doesn't do it so > idle gets a few percents. It's weird to me simply because i can't > find a description of what interrupt shows in top anywhere in the > manuals. Did you already try "top -S"? Fabian -- http://www.fabiankeil.de/ signature.asc Description: PGP signature
