tux load/performance questions
bbsea at mac.com
bbsea at mac.com
Tue Jan 25 02:46:17 UTC 2005
Hello,
I have recently started working with TUX and was forced to use it in a
production environment before I had the chance to become completely
familiar with it. Here is the scenario..
This webserver is dedicated to serving jpg images only. Approx 500,000
images ranging in size from 1k to 40k
single cpu (Intel(R) Pentium(R) 4 CPU 2.40GHz)
2 GB RAM
3ware hardware IDE RAID 0 80GB
Linux 2.4.21-9.EL (Redhat Enterprise ES)
tux-3.2.14-1
issue:
server can not currently push more than 4 mbps (as measured by iptraf)
I am reluctant to throw hardware at this problem until I can determine
that it is necessary. I would of not expected to see this sort of load
while pushing only 4 mbps of traffic. Since this is a production
environment I also am hesitant about 'trying' different software
versions
on the fly..
thoughts?
diagnostic output taken under peak production load:
more information available upon request of course..
<snip>
18:23:36 up 1 day, 5:41, 2 users, load average: 7.96, 5.15, 3.93
Mem: 2063012k av, 2041188k used, 21824k free
nobody 15 0 756 756 644 S 18.9 0.0 111:11 0 async IO 0/2
nobody 16 0 756 756 644 R 14.9 0.0 205:05 0 async IO 0/1
nobody 15 0 756 756 644 S 10.9 0.0 47:08 0 async IO 0/3
nobody 15 0 756 756 644 S 6.3 0.0 18:17 0 async IO 0/4
nobody 15 0 756 756 644 S 0.9 0.0 0:38 0 async IO 0/8
nobody 15 0 756 756 644 S 0.9 0.0 0:07 0 async IO 0/11
nobody 15 0 756 756 644 S 0.7 0.0 10:48 0 tux
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 77.49 69.59 784.97 7452148 84059990
sda1 0.00 0.00 0.00 122 46
sda2 0.00 0.01 0.02 1440 2128
sda3 77.48 69.57 784.95 7449642 84057816
sdb 0.00 0.01 0.00 568 0
sdb1 0.00 0.00 0.00 88 0
procs memory swap io system
cpu
r b swpd free buff cache si so bi bo in cs us sy id wa
1 0 4 15252 138180 1695272 0 0 35 393 238 365 0 26 63 10
Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0.01 29.33 8.69 68.81 69.58 785.17 34.79 392.58
11.03 0.33 4.21 1.68 13.02
</snip>
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