[squid-users] high VSZ w/aufs

From: Billy Macdonald <[email protected]>
Date: Tue, 31 Aug 2004 22:42:11 -0700

Hi,

      I've been running our squid proxies for a while now. I had
mistakenly set it up for diskd on a Linux box. I switched to aufs as
various squid list messages stated that's preferable for Linux.

      Well when I did that I noticed that VSZ spikes to 175000 or about
that as soon as it gets a request. Is this normal? RSS would stay at
about 6000. Note this is a empty cache at this point so there isn't
anything in the cache_dir.

      I switched it to ufs and VSZ & RSS are currently 10308 and 6520.
I did a search and couldn't find anything relevent.

      I'm using ps -aux to show these numbers incase that matters.

Thanks,
Billy

Details:

Fedora Core release 1
Squid 2.5-STABLE6 + ntlm_noreuse_leak patch
2.40 Ghz Xeon
512MB
80G SCSI

Also runs spamassasin/postfix

configure:
./configure --prefix=/usr/local/squid-2.5.STABLE6.patched \
              --enable-snmp \
              --enable-underscores \
              --enable-auth=basic,ntlm \
              --enable-external-acl-helpers=wbinfo_group \
              --enable-storeio=aufs,ufs,diskd \
              --enable-removal-policies=heap,lru

squid.conf without acl's :
           (note currently ufs but the spike is when aufs)

auth_param ntlm program /usr/local/samba/bin/ntlm_auth --debuglevel=0
--helper-protocol=squid-2.5-ntlmssp
auth_param ntlm children 15
auth_param ntlm max_challenge_reuses 0
auth_param ntlm max_challenge_lifetime 2 minutes
auth_param basic program /usr/local/samba/bin/ntlm_auth
--helper-protocol=squid-2.5-basic
auth_param basic children 2
auth_param basic realm Squid proxy-caching web server
auth_param basic credentialsttl 2 hours
http_reply_access allow all
icp_access allow all
logfile_rotate 7
always_direct allow all
http_port 2122
icp_port 3130
snmp_port 3401
hierarchy_stoplist cgi-bin ?
no_cache deny QUERY
cache_replacement_policy heap GDSF
memory_replacement_policy heap GDSF
cache_swap_low 94
cache_swap_high 95
cache_dir ufs /usr/local/squid-2.5.STABLE6.patched/var/cache 500 16 128
cache_store_log none
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
shutdown_lifetime 5 second
Received on Tue Aug 31 2004 - 23:45:37 MDT

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