Ignore the Mem: line, it's not important. It's the +/- buffers line you need to read.
The difference is the filesystem buffers, maintained autoatically by the OS to speed up disk I/O when there is free memory. Reclaimed automatically if applications needs memory. ons 2009-02-04 klockan 12:00 +0900 skrev Ja-Ryeong Koo: > > Hello, > > > > I am writing this email to ask something regarding "squid -z". > > In advance, cheers and thanks for your time. > > > > My system environment is like the follows. > > ----------- > > Squid.2.6.STABLE22 > > Intel Xeon 3.0*8 > > 8G mem > > ----------- > > > > Squid has been configured with COSS like the follows. > > ------------ > > cache_dir coss /data/var/cache0/coss 4096 max-size=4718592 > block-size=512 membufs=50 maxfullbufs=24 > cache_dir coss /data/var/cache1/coss 4096 max-size=4718592 > block-size=512 membufs=50 maxfullbufs=24 > cache_dir coss /data/var/cache2/coss 4096 max-size=4718592 > block-size=512 membufs=50 maxfullbufs=24 > ----------- > > Cache_mem is 1024 MB. > > > > The problem is, > > > > before doing "squid -z", free output indicates that about 90% of total > memory is "free memory". > > But, unfortunately, AS SOON AS I do "squid -z", "free memory" on free > output becomes very low. I am very sad.... :( > > This phenomenon happens just before starting polygraph test. > > > > I have searched relevant issues but I could not find clear answers for > this. > > > > The following is the result with "free -m" which is captured during > Polytest (fill state). > > ------------- > > total used free shared buffers > cached > Mem: 8104 7948 155 0 0 > 6370 > -/+ buffers/cache: 1577 6527 > Swap: 0 0 0 > ------------- > > > > I have done "swapoff xxx" before testing in order to shut down swap > funtionality. > > But, kswapd daemon consumes my CPU usage partially. > > > > Why does "squid -z on COSS storage scheme" comsume so many memory > before Polygraph testing? > > > > I woud greatly appreciate any kinds of comments for this matter. > > > > Thank you... > > > > With the best regards, > > Ja-Ryeong Koo > > -- > Ja-Ryeong Koo, > Department of Computer Science, > Texas A&M University-College Station, > TX, 77843-3112, USA, > Phone: +1-979-204-8021 >
