Re: [squid-users] Squid performance problem

Hi Armor,

Your dns lookup time is quite high... perhaps work on the dns to see if it
improves the surfing experience...

Rgds,
Wei Keong

On Sat, 26 Apr 2003, armor wrote:

>
> Dear all,
>
> My squid server :
>
> Intel P3 1G, SDRAM 1G, SCSI HD 36G*2, Intel 100M NIC *2
> Debian 3.0 , Linux Kernel 2.4.18
>
>
>
> I already modify kernel and sysctl to improve system.
>
> increase filedescriptor to 8192
>
> Also edit sysctl.conf to tune up network
>
> net.core.rmem_max=655350
> net.core.wmem_max=655350
> net.ipv4.tcp_keepalive_time = 1800
> net.ipv4.tcp_rmem = 4096 87380 174760
> net.ipv4.tcp_wmem = 4096 87380 174760
>
> build squid in optimization
> env CFLAGS="-O9 -funroll-loops -ffast-math -march=i686 \
> -fomit-frame-pointer \
> -finline-functions -fno-exceptions" \
> ./configure \
> --prefix=/squid --enable-cachemgr-hostname --enable-useragent-log \
> --enable-dlmalloc --enable-gnuregex --enable-cache-digests \
> --enable-err-language=Traditional_Chinese --enable-poll \
> --disable-ident-lookups --enable-snmp --enable-kill-parent-hack \
> --enable-storeio=diskd,ufs --enable-async-io=40
>
> however, it looks like not has good performance. User also complain that
> proxy is slow.
> Does any advice ?
>
> Connection information for squid:
> Number of clients accessing cache: 62
> Number of HTTP requests received: 1321
> Number of ICP messages received: 0
> Number of ICP messages sent: 0
> Number of queued ICP replies: 0
> Request failure ratio: 0.00%
> HTTP requests per minute: 269.1
> ICP messages per minute: 0.0
> Select loop called: 64185 times, 4.589 ms avg
> Cache information for squid:
> Request Hit Ratios: 5min: 36.4%, 60min: 36.4%
> Byte Hit Ratios: 5min: 34.7%, 60min: 34.7%
> Request Memory Hit Ratios: 5min: 0.0%, 60min: 0.0%
> Request Disk Hit Ratios: 5min: 29.6%, 60min: 29.6%
> Storage Swap size: 37629516 KB
> Storage Mem size: 832 KB
> Mean Object Size: 24.42 KB
> Requests given to unlinkd: 472
> Median Service Times (seconds) 5 min 60 min:
> HTTP Requests (All): 0.27332 0.27332
> Cache Misses: 0.49576 0.49576
> Cache Hits: 0.02899 0.02899
> Near Hits: 0.46965 0.46965
> Not-Modified Replies: 0.02451 0.02451
> DNS Lookups: 0.70785 0.70785
> ICP Queries: 0.00000 0.00000
> Resource usage for squid:
> UP Time: 294.560 seconds
> CPU Time: 28.200 seconds
> CPU Usage: 9.57%
> CPU Usage, 5 minute avg: 11.29%
> CPU Usage, 60 minute avg: 11.29%
> Maximum Resident Size: 0 KB
> Page faults with physical i/o: 347
> Memory usage for squid via mallinfo():
> Total space in arena: 148485 KB
> Ordinary blocks: 148473 KB 25 blks
> Small blocks: 0 KB 0 blks
> Holding blocks: 3392 KB 5 blks
> Free Small blocks: 0 KB
> Free Ordinary blocks: 11 KB
> Total in use: 151865 KB 102%
> Total free: 11 KB 0%
> Memory accounted for:
> Total accounted: 115859 KB
> memPoolAlloc calls: 8172087
> memPoolFree calls: 3543962
>
>
>
> ps1:
>
> I have almost 200 acl for deny sex webstie.
>
> acl deny_sex dstdom_regex foo.com
>
Received on Sun Apr 27 2003 - 19:58:26 MDT