RE: incredible system load
> -----Original Message-----
> From: Joey Hess [mailto:joeyh@debian.org]
> Sent: Friday, June 17, 2005 11:48 AM
> To: Steven Law
> Cc: debian-user@lists.debian.org
> Subject: Re: incredible system load
>
> Steven Law wrote:
> > i have a FTP server which runs vsftpd.
> > normally the system load average is 0.5.
> > but i found it be incredible high today.
> > here comes the 'top' information:
> >
> >
> ======================================================================
> > =====
> >
> > top - 10:06:34 up 1 day, 19:15, 2 users, load average:
> 31.24, 30.43, 23.65
> > Tasks: 236 total, 1 running, 235 sleeping, 0 stopped, 0 zombie
> ^^^^^^^^^
> > Cpu0 : 0.0% us, 1.0% sy, 0.0% ni, 0.0% id, 94.1% wa,
> 2.0% hi,
> > 2.9% si
> > Cpu1 : 0.0% us, 0.0% sy, 0.0% ni, 100.0% id, 0.0% wa,
> 0.0% hi,
> > 0.0% si
> > Cpu2 : 0.0% us, 2.0% sy, 0.0% ni, 0.0% id, 96.0% wa,
> 1.0% hi,
> > 1.0% si
> > Cpu3 : 0.0% us, 0.0% sy, 0.0% ni, 31.7% id, 68.3% wa,
> 0.0% hi, 0.0% si
> > Mem: 2075456k total, 2068932k used, 6524k free,
> 7448k buffers
> > Swap: 1951888k total, 0k used, 1951888k free,
> 1962784k cached
> >
> > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> >
> > 3311 root 16 0 2204 1172 844 R 2.0 0.1 0:00.11 top
> >
> > 152 root 15 0 0 0 0 S 1.0 0.0 12:24.65 kswapd0
> >
> > 1780 ftp 15 0 3204 1224 960 D 1.0 0.1 0:00.27 vsftpd
> ^
> >
> > 2570 ftp 15 0 3204 1188 936 D 1.0 0.1 0:00.17 vsftpd
> ^
>
> You don't have much of a load problem. You have processes
> stuck in uninterruptable state, possibly due to a disk
> problem or kernel issue.
>
> ps -ax | grep D
>
> --
> see shy jo
>
this server is all right ago.
i made raid5 now (raid0 ago) and reinstall debian(testing).
i use the same kernel as it before.
but now i got so many uninterupted processes.
here comes the top information, even worse then morning :
----------------------------
top - 16:04:49 up 1:39, 4 users, load average: 162.97, 163.72, 156.50
Tasks: 476 total, 1 running, 475 sleeping, 0 stopped, 0 zombie
Cpu0 : 1.0% us, 4.0% sy, 0.0% ni, 0.0% id, 93.4% wa, 0.0% hi, 1.5% si
Cpu1 : 0.0% us, 0.5% sy, 0.0% ni, 0.0% id, 99.5% wa, 0.0% hi, 0.0% si
Cpu2 : 1.0% us, 6.5% sy, 0.0% ni, 0.0% id, 84.4% wa, 3.5% hi, 4.5% si
Cpu3 : 0.0% us, 0.5% sy, 0.0% ni, 0.0% id, 99.5% wa, 0.0% hi, 0.0% si
Mem: 2075612k total, 2031816k used, 43796k free, 6452k buffers
Swap: 1951888k total, 0k used, 1951888k free, 1893060k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
9942 ftp 16 0 3280 1308 960 D 6.5 0.1 0:33.13 vsftpd
11551 root 16 0 2336 1304 836 R 1.0 0.1 0:00.08 top
5679 ftp 15 0 3204 1240 964 D 0.5 0.1 0:02.14 vsftpd
5779 ftp 15 0 3204 1240 964 D 0.5 0.1 0:01.52 vsftpd
8318 ftp 15 0 3204 1200 952 D 0.5 0.1 0:00.86 vsftpd
10988 ftp 15 0 3204 1240 964 D 0.5 0.1 0:00.06 vsftpd
1011 root 15 0 0 0 0 D 0.0 0.0 0:04.73 kjournald
1407 ftp 15 0 3204 1228 964 D 0.0 0.1 0:00.53 vsftpd
1430 ftp 15 0 3204 1188 952 D 0.0 0.1 0:00.41 vsftpd
1723 ftp 15 0 3204 1264 964 D 0.0 0.1 0:00.21 vsftpd
1738 ftp 16 0 3204 1208 960 D 0.0 0.1 0:00.42 vsftpd
1754 ftp 15 0 3204 1264 964 D 0.0 0.1 0:00.26 vsftpd
1773 ftp 15 0 3204 1264 964 D 0.0 0.1 0:00.58 vsftpd
1927 ftp 16 0 3204 1208 960 D 0.0 0.1 0:00.33 vsftpd
2037 ftp 15 0 3204 1216 960 D 0.0 0.1 0:00.30 vsftpd
2273 ftp 15 0 3204 1208 960 D 0.0 0.1 0:00.27 vsftpd
2293 ftp 16 0 3204 1212 960 D 0.0 0.1 0:01.80 vsftpd
2874 ftp 15 0 3204 1232 964 D 0.0 0.1 0:00.15 vsftpd
3034 ftp 15 0 3204 1180 936 D 0.0 0.1 0:00.10 vsftpd
3326 ftp 15 0 3204 1216 960 D 0.0 0.1 0:00.15 vsftpd
3345 ftp 15 0 3280 1336 996 D 0.0 0.1 0:06.46 vsftpd
3383 ftp 15 0 3204 1268 964 D 0.0 0.1 0:00.43 vsftpd
3480 ftp 15 0 3204 1212 960 D 0.0 0.1 0:00.38 vsftpd
3598 ftp 15 0 3204 1196 952 D 0.0 0.1 0:01.18 vsftpd
3618 ftp 16 0 3204 1288 996 D 0.0 0.1 0:00.01 vsftpd
3743 ftp 16 0 3204 1232 956 D 0.0 0.1 0:00.00 vsftpd
3770 ftp 17 0 3204 1232 956 D 0.0 0.1 0:00.00 vsftpd
3896 ftp 16 0 3204 1268 996 D 0.0 0.1 0:00.01 vsftpd
4064 ftp 15 0 3204 1236 960 D 0.0 0.1 0:00.02 vsftpd
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