Is there a difference in the CPUs between the servers? I have seen servers with lots of cores (24 cores) do more context switching.
-Bryan On Jul 3, 2012, at 3:39 AM, Hung Nguyen wrote: > Dear guys, > > I do some test cases on 2 servers which installed Traffic server as reverse > proxy. > > - Box 1: using SSD disk which using 15GB for disk cache, 15GB ram cache > - Box 2: using SAS disk which using 4GB for disk cache, 4 GB ram cache > > > On box 1 I got about 10K context switch > > > -- trafficserver]# tsar --pcsw -i 1 -l > Time -------pcsw----- > Time cswch proc > 03/07-17:31 10.2K 0.0 > 03/07-17:31 10.7K 6.0 > 03/07-17:31 10.4K 61.0 > > > On box 2: > tsar --pcsw -i 1 -l > Time -------pcsw----- > Time cswch proc > 03/07-17:32 4.5K 0.0 > 03/07-17:32 5.0K 0.0 > 03/07-17:32 4.4K 0.0 > > > is there any reason cause ATS create many context switches on server? > > --- > Hung. Nguyen Van > Website: http://ethicconsultant.com > >
