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Re: High cpu usage by re_search_internal

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Hi,

I have 2 squid boxes . Same version,OS and almost same config,hardware .
Both have same problem also . normally cpu usage by squid is very high . I
have tried this guide http://wiki.squid-cache.org/SquidFaq/SquidProfiling 
and found more than 85% of cpu usage is by re_search_internal symbol name .
Please help me to solve this problem

samples  %        image name               app name                 symbol
name
3297480  89.3408  libc-2.15.so             squid3                  
re_search_internal


 squid3 -v
Squid Cache: Version 3.1.20
configure options:  '--build=x86_64-linux-gnu' '--prefix=/usr'
'--includedir=${prefix}/include' '--mandir=${prefix}/share/man'
'--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var'
'--libexecdir=${prefix}/lib/squid3' '--srcdir=.' '--disable-maintainer-mode'
'--disable-dependency-tracking' '--disable-silent-rules'
'--datadir=/usr/share/squid3' '--sysconfdir=/etc/squid3'
'--mandir=/usr/share/man' '--with-cppunit-basedir=/usr' '--enable-inline'
'--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd'
'--enable-removal-policies=lru,heap' '--enable-delay-pools'
'--enable-cache-digests' '--enable-underscores' '--enable-icap-client'
'--enable-follow-x-forwarded-for'
'--enable-auth=basic,digest,ntlm,negotiate'
'--enable-basic-auth-helpers=LDAP,MSNT,NCSA,PAM,SASL,SMB,YP,DB,POP3,getpwnam,squid_radius_auth,multi-domain-NTLM'
'--enable-ntlm-auth-helpers=smb_lm,'
'--enable-digest-auth-helpers=ldap,password'
'--enable-negotiate-auth-helpers=squid_kerb_auth'
'--enable-external-acl-helpers=ip_user,ldap_group,session,unix_group,wbinfo_group'
'--enable-arp-acl' '--enable-esi' '--enable-zph-qos' '--enable-wccpv2'
'--disable-translation' '--with-logdir=/var/log/squid3'
'--with-pidfile=/var/run/squid3.pid' '--with-filedescriptors=65536'
'--with-large-files' '--with-default-user=proxy' '--enable-linux-netfilter'
'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fPIE -fstack-protector
--param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall'
'LDFLAGS=-Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now'
'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fPIE -fstack-protector
--param=ssp-buffer-size=4 -Wformat -Werror=format-security'
--with-squid=/build/buildd/squid3-3.1.20



Linux 3.5.0-51-generic #76-Ubuntu SMP Thu May 15 21:19:10 UTC 2014 x86_64
x86_64 x86_64 GNU/Linux






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