Hello, I agree that it could be about VM/ATS settings. Anyway, here are the info you wanted.
# grep thread /etc/trafficserver/records.config CONFIG proxy.config.exec_thread.autoconfig INT 1 CONFIG proxy.config.exec_thread.autoconfig.scale FLOAT 1.500000 CONFIG proxy.config.exec_thread.limit INT 2 CONFIG proxy.config.accept_threads INT 1 CONFIG proxy.config.cache.threads_per_disk INT 8 CONFIG proxy.config.ssl.number.threads INT 0 CONFIG proxy.config.task_threads INT 2 # grep dev /etc/trafficserver/storage.config /dev/sdb /dev/sdc /dev/sdd To avoid long output and format issue with mail, I used pastebin for following command's results: # cat /proc/interrupts -> http://pastebin.com/MvgpLB4S # lshw -c disk -c volume -> http://pastebin.com/j2j5YnSX Cheers, Jean-Baptiste Favre On 04/06/2014 14:59, jtomo...@yahoo.com.INVALID wrote: > Hi Baptiste, > In my opinion it's all about your VM/ATS settings. > Can you post these clues: > > cat /proc/interrupts > cat etc/trafficserver/records.config | grep thread > cat etc/trafficserver/storage.config | grep dev > lshw -c disk -c volume > > Cheers > JT > > From: Jan-Frode Myklebust <janfr...@tanso.net>; > To: <dev@trafficserver.apache.org>; > Subject: Re: TrafficServer and IO/Wait > Sent: Wed, Jun 4, 2014 10:45:27 AM > > On Wed, Jun 04, 2014 at 11:28:07AM +0200, Jean Baptiste Favre wrote: >> Hello, >> Each VM has 4GB memory. >> >> traffic_line -r proxy.config.cache.ram_cache.size gives 2147483648 > > I would consider increasing proxy.config.cache.ram_cache.size to at > least 3GB on your 4GB VMs. Assuming ATS will have better knowledge about > what to keep in memory than the linux page cache. > > And maybe give the VMs lots of more memory so that you can increase the > ram_cache.size further. > > I try to make sure ATS can keep everything in memory -- memory is cheap, > disk IOPS is slow and expensive. > > > > -jf
