Hello, list ! Several days ago I find that squid 3.0STABLE16 eating cpu when client using HTTP connect and his request is hitting by squid delay pool. I posted message on list and were noticed to be using squid3.0STABLE20 - last stable version in 3.0 branch. I tried to upgrade our squid to 3.0STABLE20 and the problem is still exist. The problem is described below: Clients, who using http CONNECT for downloading files & hitting the generic squid delay pool, increase squid server's CPU loading to 90-100%. Here is described test: part of squid.conf: #------------------------------------------------------------------------------------------------- acl class0 src 172.16.7.107/32 acl class0_time time T 00:00-23:59 http_access allow class0 class0_time delay_class 5 1 delay_access 5 allow class0 #16Kbyte-shaper delay_parameters 5 16000/16000 #------------------------------------------------------------------------------------------------- 172.16.7.107 - it's my test machine. I tried to download file through squid3.0STABLE20. Top reports 100% CPU immediately after download started. I used small self-writed utility for tests that may CONNECT'ing to proxy. English is not my native tongue, sorry if I describing problem not very well. Here is some additional information: squid -v: Squid Cache: Version 3.0.STABLE20 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' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--sharedstatedir=/usr/com' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--exec_prefix=/usr' '--bindir=/usr/sbin' '--libexecdir=/usr/lib64/squid' '--localstatedir=/var' '--datadir=/usr/share' '--sysconfdir=/etc/squid' '--disable-dependency-tracking' '--enable-arp-acl' '--enable-auth=basic,digest,ntlm,negotiate' '--enable-basic-auth-helpers=LDAP,MSNT,NCSA,PAM,SMB,YP,getpwnam,multi-domain-NTLM,SASL' '--enable-negotiate-auth-helpers=squid_kerb_auth' '--enable-cache-digests' '--enable-cachemgr-hostname=localhost' '--enable-delay-pools' '--enable-digest-auth-helpers=password' '--enable-epoll' '--enable-external-acl-helpers=ip_user,ldap_group,unix_group,wbinfo_group' '--enable-icap-client' '--enable-ident-lookups' '--enable-linux-netfilter' '--enable-ntlm-auth-helpers=SMB,fakeauth' '--enable-referer-log' '--enable-removal-policies=heap,lru' '--enable-snmp' '--enable-ssl' '--enable-storeio=aufs,diskd,null,ufs' '--enable-useragent-log' '--enable-wccpv2' '--with-aio' '--with-default-user=squid' '--with-filedescriptors=16384' '--with-dl' '--with-openssl=/usr/kerberos' '--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' 'FFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' [root@test-proxy ~]# cat /etc/redhat-release CentOS release 5.3 (Final) [root@test-proxy ~]# arch x86_64 [root@test-proxy ~]# cat /proc/version Linux version 2.6.18-128.el5 (mockbuild@xxxxxxxxxxxxxxxxxxxx) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-44)) #1 SMP Wed Jan 21 10:41:14 EST 2009 I'll put an email to Henrik Nordstrom with detailed debug info. Do I must make a bugreport on squid-cache.org or/and do something else ? Thank for tips & help.
