Date: Wed, 11 Sep 2013 10:32:36 +0000 From: "Eggert, Lars" <lars@netapp.com> To: "stable@freebsd.org" <stable@freebsd.org> Cc: Rick Macklem <rmacklem@uoguelph.ca> Subject: nfsd CPU usage? Message-ID: <404C967C-4BFB-424C-A5E0-6ACE6576249C@netapp.com>
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Hi,
I'm seeing extremely high CPU usage withssh-st the new nfsd:
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND
2280 root 102 0 9932K 1376K *nfs_c 0 320:11 100.00% =
nfsd{nfsd: service}
2280 root 102 0 9932K 1376K CPU7 7 319:47 100.00% =
nfsd{nfsd: service}
2280 root 102 0 9932K 1376K CPU5 5 318:25 100.00% =
nfsd{nfsd: service}
2280 root 102 0 9932K 1376K CPU6 6 318:20 100.00% =
nfsd{nfsd: service}
2280 root 52 0 9932K 1376K CPU0 0 317:32 100.00% =
nfsd{nfsd: service}
2280 root 102 0 9932K 1376K *nfs_c 1 315:41 99.17% =
nfsd{nfsd: service}
2280 root 52 0 9932K 1376K *nfs_c 4 320:22 98.78% =
nfsd{nfsd: master}
2280 root 102 0 9932K 1376K *nfs_c 1 317:10 98.10% =
nfsd{nfsd: service}
And this is at a few hundred KB/s with only a few clients:
ifstat -i igb1 10
igb1 =20
KB/s in KB/s out
796.56 208.66
431.19 232.36
316.11 280.31
1005.96 523.42
1077.74 342.25
340.63 217.73
1067.96 330.56
487.91 235.61
Any ideas?
FreeBSD stanley.muccbc.hq.netapp.com 9.2-PRERELEASE FreeBSD =
9.2-PRERELEASE #7: Wed Sep 4 11:06:31 CEST 2013 =
root@stanley.muccbc.hq.netapp.com:/usr/obj/usr/src/sys/STANLEY amd64
Thanks,
Lars
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