Public bug reported:
while debugging bug 1491566
On arale, rc-proposed circa sept 14
I had launched phone, messaging, browser (on cnn.com), camera (taken pics),
gallery (edit mode of pic), clock, ubuntu-system-settings, cut-the-rope, dash
(of course) - toggling between them in the spread, just selecting them, mostly
clock, browser, gallery
and at the same time running the phone/text script as found in bug 1491566
(modified to text, call, then text 5 times)
I just happened to be running top and then noticed process
kswapd
would run & peg cpu intermittently, sometimes it would peg the cpu for just 1
second or so, but then sometimes it would appear to run at 95%+ for like 10
seconds or more.
It didn't seem to follow a particular pattern, but i could definitely tell it
was effecting the ui (stalling)
ogra indicated our swappiness should be very low.
so i did sudo sysctl vm.swappiness=10 as instructed, however as i continued
testing, i continued to see kswapd continue to run and peg the cpu at about the
same frequency.
** Affects: canonical-devices-system-image
Importance: Undecided
Status: New
** Affects: lxc-android-config (Ubuntu)
Importance: Undecided
Status: New
** Also affects: canonical-devices-system-image
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1496051
Title:
kswapd pegging cpu
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