Date: Tue, 19 May 2009 14:45:03 +0300 From: Stefan Lambrev <stefan.lambrev@moneybookers.com> To: freebsd-stable@freebsd.org Subject: top - proc accounting does not work on freebsd 7.2 Message-ID: <7F3CB337-C914-43D0-9C02-34F6A3358A48@moneybookers.com>
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Greetings, I'm tracking i386 releng_7 on kind of old single CPU machine and I see very annoying problem. top (-S) is not reporting things properly: last pid: 20337; load averages: 0.43, 0.11, 0.04 up 0+13:20:07 14:37:44 123 processes: 3 running, 102 sleeping, 18 waiting CPU: 75.0% user, 0.0% nice, 25.0% system, 0.0% interrupt, 0.0% idle Mem: 108M Active, 702M Inact, 232M Wired, 1212K Cache, 112M Buf, 1958M Free Swap: 4096M Total, 4096M Free PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND 10 root 1 171 ki31 0K 8K RUN 769:35 56.15% idle: cpu0 19375 root 1 8 0 3464K 1616K wait 0:00 0.20% sh 13 root 1 -44 - 0K 8K WAIT 7:35 0.00% swi1: net 33 root 1 -80 - 0K 8K WAIT 1:57 0.00% irq18: vgapci0 11 root 1 -32 - 0K 8K WAIT 0:59 0.00% swi4: clock sio 46 root 1 20 - 0K 8K syncer 0:46 0.00% syncer 1066 user 1 44 0 32508K 26368K select 0:27 0.00% kdeinit 977 root 1 44 0 71956K 50668K select 0:23 0.00% Xorg As you can see the CPU is 0% idle but the idle process is accounted 56.15% It doesn't matter how the load is created - web browser, X, compilation or something else. Top just reports that only idle process is eating CPU. Here is part of dmesg info: FreeBSD 7.2-STABLE #10: Sat May 16 09:05:31 EEST 2009 root@cheffo.freebsd-bg.org:/usr/obj/usr/src/sys/CORE Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: AMD Athlon(tm) 64 Processor 3200+ (2200.22-MHz 686-class CPU) Origin = "AuthenticAMD" Id = 0x20ff0 Stepping = 0 Features = 0x78bfbff < FPU ,VME ,DE ,PSE ,TSC ,MSR ,PAE ,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2> Features2=0x1<SSE3> AMD Features=0xe2500800<SYSCALL,NX,MMX+,FFXSR,LM,3DNow!+,3DNow!> AMD Features2=0x1<LAHF> real memory = 3221159936 (3071 MB) avail memory = 3140956160 (2995 MB) I'm using in my kernel: options SCHED_ULE # ULE scheduler options SMP # tried without it - no difference options HWPMC_HOOKS device hwpmc There are other changes from GENERIC, but they are removed/added drivers and I'm sure the problem is not there. Any idea why top does not work properly? -- Best Wishes, Stefan Lambrev ICQ# 24134177
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