PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1783 proxy 20 0 569m 529m 4132 S 1 26.4 274:53.22 squid but the system still thinks it is using 529m memory I'm still on 3.1.15, I will see how it goes for 3.1.19 Squid Cache: Version 3.1.15 configure options: '--disable-maintainer-mode' '--disable-dependency-tracking' '--disable-silent-rules' '--enable-inline' '--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd' '--enable-removal-policies=lru,heap' '--enable-cache-digests' '--enable-underscores' '--enable-follow-x-forwarded-for' '--disable-translation' '--with-filedescriptors=65536' '--with-default-user=proxy' '--enable-ssl' '--enable-ltdl-convenience' --with-squid=/tmp/squid-3.1.15/squid-3.1.15 On Wed, Feb 29, 2012 at 12:06 AM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote: > On 29/02/2012 6:50 p.m., Yucong Sun (叶雨飞) wrote: >> >> Memory usage for squid via mallinfo(): >> Total space in arena: 536788 KB >> Ordinary blocks: 173203 KB 4895 blks >> Small blocks: 0 KB 0 blks >> Holding blocks: 1420 KB 3 blks >> Free Small blocks: 0 KB >> Free Ordinary blocks: 363584 KB >> Total in use: 174623 KB 32% >> Total free: 363585 KB 68% >> Total size: 538208 KB > > > These are numbers provided by the operating system. Squid is using ~174 MB > now and under peak traffic load it used ~538 MB. The difference has already > been free'd. > > >> Memory accounted for: >> Total accounted: 40844 KB 8% >> memPool accounted: 40843 KB 8% >> memPool unaccounted: 497364 KB 92% >> memPoolAlloc calls: 0 >> memPoolFree calls: 841528260 > > > That indicates the extra 500 MB as being temporary objects for processing > client requests as they pass through Squid. > > 92% unaccounted is strange though. If you have a Squid older than 3.1.19 > please try upgrading, it could be one of several memory problems which we > have fixed already. > > I'm also aware of a patch which can be tried on top of 3.1.19 as a last > resort. It is untested and a bit risky in 3.1 series. > > Amos
