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cputime_to_cputime64
2011 Dec 22
0
Re: [PATCH] remove blocked time accounting from xen "clockchip"
...y have no idea what the remain 1% could be attributed to,
>> so thoughts from others would certainly be welcome.
>
> What about irqtime_account_process_tick() calling account_idle_time()
> with "cputime_one_jiffy" -- it could more frequently trigger the
> underflow in _cputime_to_cputime64(). In that case we might want to
> decrease idle time (ie. account "negative" cputime against idle), but can''t.
Despite my thinking of this supposedly being impossible, I put in
accounting of what is getting lost here. With an unexpected result:
There''s far more sto...