[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: WAPBL on multicore, 1 (ONE!) process...
> > http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=39564
> Ah yeah, that was the PR I was referring to also. But I always thought
> that one of the test runs were done without WAPBL. I now see all of them
> have it on. It would be interesting to know the runtime of the build
> without -o log on that PR, just for comparison. It's probably something
> like 15 minutes...
Quoting from the PR addition I wrote:
I've repeated this experiment on a non-wapbl file system on the same
system, but there the difference was in the "sync loop" disfavour:
5799.240u 2232.222s 24:57.93 536.1% 0+0k 494+710112io 32612pf+0w
5881.837u 2435.640s 27:14.19 508.9% 0+0k 0+720501io 32646pf+0w
and the number of IOs is comparable.
So... not 15 minutes, but also not over 2 hours, which was the
state with WAPBL before adding that unpublished (?) patch of
Simon and turning off disk cache flushing.
Main Index |
Thread Index |