From: Wanpeng Li
Commit:
57430218317e ("sched/cputime: Count actually elapsed irq & softirq
time")
... triggered a regression:
| An i5 laptop, 4 pCPUs, 4vCPUs for one full dynticks guest, there are four
| cpu hog processes(for loop) running in the guest, I
From: Wanpeng Li
Commit:
57430218317e ("sched/cputime: Count actually elapsed irq & softirq
time")
... triggered a regression:
| An i5 laptop, 4 pCPUs, 4vCPUs for one full dynticks guest, there are four
| cpu hog processes(for loop) running in the guest, I hot-unplug the pCPUs
| on
On Wed, 2016-08-17 at 10:05 +0800, Wanpeng Li wrote:
> This patch fix the regression by limiting the account_other_time()
> from
> get_vtime_delta() to avoid underflow, and let other three call sites
> (account_other_time() and steal_account_process_time()) account
> however
> much steal time
On Wed, 2016-08-17 at 10:05 +0800, Wanpeng Li wrote:
> This patch fix the regression by limiting the account_other_time()
> from
> get_vtime_delta() to avoid underflow, and let other three call sites
> (account_other_time() and steal_account_process_time()) account
> however
> much steal time
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