Jed Reynolds wrote:
Ugo Bellavance wrote:
Can you send us the output of vmstat -n 5 5
when you're doing a backup?
This is with rsync at bwlimit=2500
This is doing the same transfer with SSH. The load still climbs...and
then load drops. I think NFS is the issue.
I wonder if my NFS connection settings in client fstabs are unwise? I
figured with beefy machine and fast networking, I could take advantage
of large packetsizes. Bad packet sizes?
rw,hard,intr,rsize=16384,wsize=16384
top - 23:04:35 up 3 days, 10:34, 4 users, load average: 4.08, 3.06, 2.81
Tasks: 132 total, 1 running, 131 sleeping, 0 stopped, 0 zombie
Cpu0 : 5.7% us, 1.7% sy, 0.0% ni, 72.0% id, 19.3% wa, 0.7% hi, 0.7% si
Cpu1 : 1.3% us, 3.0% sy, 0.0% ni, 38.4% id, 51.0% wa, 0.7% hi, 5.6% si
Mem: 8169712k total, 8149288k used, 20424k free, 162628k buffers
Swap: 4194296k total, 160k used, 4194136k free, 6374960k cached
then
top - 23:08:49 up 3 days, 10:39, 4 users, load average: 0.89, 1.86, 2.38
Tasks: 129 total, 1 running, 128 sleeping, 0 stopped, 0 zombie
Cpu0 : 5.2% us, 2.8% sy, 0.0% ni, 63.7% id, 23.4% wa, 1.2% hi, 3.8% si
Cpu1 : 1.2% us, 3.2% sy, 0.0% ni, 65.9% id, 27.3% wa, 1.0% hi, 1.4% si
Mem: 8169712k total, 8149512k used, 20200k free, 141388k buffers
Swap: 4194296k total, 160k used, 4194136k free, 6388856k cached
$ vmstat -n 5 5
procs -----------memory---------- ---swap-- -----io---- --system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy
id wa
0 0 160 18712 155060 6383956 0 0 96 45 42 70 0
2 89 9
0 0 160 20128 154328 6382988 0 0 421 2578 7622 2433 3
4 64 29
0 0 160 18192 153920 6384076 0 0 126 2498 7116 2238 3
6 72 19
0 1 160 22872 153684 6380640 0 0 110 2451 7065 2063 3
4 64 28
0 0 160 23880 153416 6379752 0 0 34 2520 7091 2506 3
4 68 25
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