On 4/03/2016 8:08 p.m., johnzeng wrote: > > Hello Dear Sir > > > I hope i can improve hit ratio of cache system recently , but i have two > question . > > first : whether maximum_object_size_in_memory can be writed ( other > value less than 1KB) > > maximum_object_size_in_memory 500 bytes ( whether it will be correct ) > Object size limits can go down as far as 0 bytes if you want/need that. Squid currently understands the units: bytes, KB, MB, GB > > Second : > > When i set maximum_object_size_in_memory 4 KB and i found > TCP_MEM_HIT/200 ( hit ratio )is very low based memory storage > > When i set maximum_object_size_in_memory 1 KB and i found TCP_HIT/200 ( > hit ratio based disk storage )is > > better than TCP_MEM_HIT/200( memory storage) > > How to improve hit ratio in memory ? I suggest you actually measure the traffic first. The best way to set these ranges is to first measure a histogram of how many objects there are passing through your proxy for each size. When you do that you will see _bumps_ in the counts around certain object sizes. I suggest setting the limits within a dip between two of these bumps. Which position is up to you. > > maximum_object_size_in_memory 1 KB > > 04/Mar/2016:14:56:06 +0800.318 1 192.168.0.56 TCP_HIT/200 1113 GET > http://image.sinajs.cn/newchart/small/t/sh000001.gif - HIER_NONE/- image/gif > 04/Mar/2016:14:56:08 +0800.106 0 192.168.0.56 TCP_HIT/200 1113 GET > http://image.sinajs.cn/newchart/small/t/sh000001.gif - HIER_NONE/- image/gif > 04/Mar/2016:14:43:08 +0800.479 0 192.168.0.56 TCP_HIT/200 1656 GET > http://www.swjtu.edu.cn/themes/12163/default494/images/bin_ico.png - > HIER_NONE/- image/png > 04/Mar/2016:14:43:08 +0800.485 1 192.168.0.56 TCP_HIT/200 3929 GET > http://www.swjtu.edu.cn/themes/12163/default494/images/ico_arrow.png - > HIER_NONE/- image/png > How many bytes in 1 KB? Compare it to the byte sizes above. > maximum_object_size_in_memory 4 KB > > 04/Mar/2016:11:35:24 +0800.708 0 192.168.0.56 TCP_MEM_HIT/200 2037 GET > http://cpro.baidustatic.com/cpro/ui/noexpire/img/2.0.0/bd-logo5.png - > HIER_NONE/- image/png > Amos _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
