On Wed, Nov 20, 2013 at 07:57:24AM +0000, Sergiusz Pawlowicz wrote: > On Wed, Nov 20, 2013 at 1:28 AM, Herbert Poetzl <herbert@13thfloor.at> wrote: >> On Tue, Nov 19, 2013 at 11:38:35PM +0000, Sergiusz Pawlowicz wrote: >>> I am using htop, which is very recommended: >>> # vcontext --migrate --xid 1 -- htop >>> but with vserver on kernels starting from 3.x it lost >>> the most important part: it does not show I/O values :-( >> So to clarify, running something like >> # dd if=/dev/zero of=/dev/null & >> shows up in 'htop' with high I/O values but doesn't >> show any I/O in 'chcontext --xid 1 -- htop'? > Hi Herbert! > No, the process run in a guest does not show its I/O in htop > runing on the host. That is expected, as guest processes do by default, not show up on the host at all. > If I run htop in any of guests, it works ok. But I do not get > aggregate values across all server, which is essential do > diagnose the potential problems. You modified /proc/vmstat according to point 2.6 in the FAQ? >> If so, please run both htop invocations with >> strace -fF on an unloaded host (minimal processes >> and no guest running) and upload the dumps somewhere >> where I can reach them. >> If not, please clarify what issue you are observing >> and provide some examples to test with. > Should I run for example one guest instance and send you > strace output over? If the process is identifyable in the strace, then this information might be helpful. In any case, please provide a test case/setup to recreate the issue. Thanks in advance, Herbert > Thanks, > Serge