add /proc/sys/vm/vm_pagecache_limit_async interface which
allow page caches reclaimed in kpclimitd, it will not consume
work threads runtime, but oom may be occured. it's closed default.
Signed-off-by: Zhiping Du <zhipingdu@tencent.com>
Signed-off-by: Chunguang Xu <brookxu@tencent.com>
iotop cannot run inside container for taskstats not supporting net
namespace, in order to fix it we set netnsok filed of taskstats object
to true.
Signed-off-by: Chunguang Xu <brookxu@tencent.com>
calc loadavg for each container using the same algorithm
with the global load.
Signed-off-by: Weiwei Li <nuonuoli@tencent.com>
Signed-off-by: Liu Hua <shookliu@tencent.com>
We add cpuinfo and stat for each container which
used for docker to get cpu stat just for current
container.
Signed-off-by: Xiaoming Gao <newtongao@tencent.com>
Signed-off-by: Weiwei Li <nuonuoli@tencent.com>
Signed-off-by: Liu Hua <shookliu@tencent.com>
the print_fatal_signals sysctl can only dump fatal signals from receiver's side,
cannot find who and why send these fatal signals, so add a new sysctl
print_fatal_signals_src_dst to switch dump fatal signals from sender side.
Signed-off-by: Xiaoming Gao <newtongao@tencent.com>
create a pid mapping data to parent processes in file /proc/$PID/status
create a proc file (/proc/$PID/hostinfo), mapping pid data to host pid
Signed-off-by: Lorin Liu <lorinliu@tencent.com>
Chunguang Xu