This is the mail archive of the libstdc++@gcc.gnu.org mailing list for the libstdc++ project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: PCH now working, should be default?


In message <200303031953 dot h23JrLb25348 at fillmore dot constant dot com>, Benjamin Kosnik w
rites:
 >The big win? Well, make check-target-libstdc++-v3 now completes in
 >roughly half the time, with no new failures. Specifically, for me:
 >
 >without pch:
 >2046.929u 160.025s 1:01:38.19 59.6%	0+0k 0+0io 2262556pf+0w
 >
 >with pch:
 >1951.369u 137.396s 37:05.66 93.8%	0+0k 0+0io 1690506pf+0w
 >
 >I'm considering switching this on by default. Thoughts?
Note that it'd probably help the G++ testsuite as well.  

You should have warned folks to look closely at the wall clock time,
not user+system time.

I looked at user + system first and thought "gee, PCH really didn't
help much!" :-)

jeff


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]