-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Did you had the chance to take look at bug 3997: http://bugs.squid-cache.org/show_bug.cgi?id=3997 The issue is being tested and there is something that causing it and from my understanding squid does something wrong but I cannot confirm it as the source. If you can add the new details about the issue in the bug report it will help a lot. Eliezer On 01/05/2015 07:48 PM, Steve Hill wrote: > On 05.01.15 16:35, Eliezer Croitoru wrote: > >> Can you share the "squid -v" output and the OS you are using? > > Scientific Linux 6.6, see below for the squid -v output. > > I've now more or less confirmed that this is the cause of my > performance problems - every so often I see Squid using all the CPU > whilst servicing very few requests. Most of the CPU time is being > used by the appendNewOnly() function. For example, 228 > milliseconds for appendNewOnly() to process a request with 2687 > "token" notes attached to it, and this can happen more than once > per request. > > > Squid Cache: Version 3.4.10 configure options: > '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' > '--target=x86_64-redhat-linux-gnu' '--program-prefix=' > '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' > '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' > '--includedir=/usr/include' '--libdir=/usr/lib64' > '--libexecdir=/usr/libexec' '--sharedstatedir=/var/lib' > '--mandir=/usr/share/man' '--infodir=/usr/share/info' > '--exec_prefix=/usr' '--libexecdir=/usr/lib64/squid' > '--localstatedir=/var' '--datadir=/usr/share/squid' > '--sysconfdir=/etc/squid' > '--with-logdir=$(localstatedir)/log/squid' > '--with-pidfile=$(localstatedir)/run/squid.pid' > '--disable-dependency-tracking' '--enable-arp-acl' > '--enable-follow-x-forwarded-for' '--enable-auth' > '--enable-auth-basic-helpers=LDAP,MSNT,NCSA,PAM,SMB,YP,getpwnam,multi-domain-NTLM,SASL,DB,POP3,squid_radius_auth' > > '--enable-auth-ntlm-helpers=smb_lm,no_check,fakeauth' > '--enable-auth-digest-helpers=password,ldap,eDirectory' > '--enable-auth-negotiate-helpers=squid_kerb_auth' > '--enable-external-acl-helpers=file_userip,LDAP_group,unix_group,wbinfo_group' > > '--enable-cache-digests' '--enable-cachemgr-hostname=localhost' > '--enable-delay-pools' '--enable-epoll' '--enable-icap-client' > '--enable-ident-lookups' '--enable-linux-netfilter' > '--enable-referer-log' '--enable-removal-policies=heap,lru' > '--enable-snmp' '--enable-ssl' > '--enable-storeio=aufs,diskd,ufs,rock' '--enable-useragent-log' > '--enable-wccpv2' '--enable-esi' '--with-aio' > '--with-default-user=squid' '--with-filedescriptors=16384' > '--with-dl' '--with-openssl' '--with-pthreads' > 'build_alias=x86_64-redhat-linux-gnu' > 'host_alias=x86_64-redhat-linux-gnu' > 'target_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-fPIE -Os -g -pipe > -fsigned-char -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 > -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 > -mtune=generic' 'LDFLAGS=-pie' 'CXXFLAGS=-fPIE -O2 -g -pipe -Wall > -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector > --param=ssp-buffer-size=4 -m64 -mtune=generic' > 'PKG_CONFIG_PATH=/usr/lib64/pkgconfig:/usr/share/pkgconfig' > --enable-ltdl-convenience -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJUqu/eAAoJENxnfXtQ8ZQUaBAH/146ro2Zhu05/d1hMdMo4e9V 6vreXFmlaNYhoP+/drvefLhSN53TtFtKkhcvnM5IZOQoVSS/Sv8pe/uQ04Z7LksM kfB24SP/rSM8l1QFTH+v0usdUDbm/uLZk5BYvxCI2zoJCQ/PW4v4gFAepUyKqOFH I9fjg168wn9bdKe+jtQ5d1y5jkYewBe8ijfwIeUVcHHwnK2q/38V/61JmdGLpjGW cBmxTujLPpufSgP2fUXIdinM1ZRWoINh5OXVJuzj8DO2BJCVf37btW4Xv8BrpSuK 2qbKHR+k+wpJUhbd29lqpHYxHal6PhN4dHA++G/zM5c97CxHTSdf6QKO5R462HY= =vKmo -----END PGP SIGNATURE----- _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
