On Mon, Dec 06, 2010 at 07:35:31PM +0200, Kostik Belousov wrote: > On Mon, Dec 06, 2010 at 08:38:30AM -0800, Steve Kargl wrote: > > John, > > > > Thanks for the comment. It seems this splitting has become > > worse (for some definition of worse) in that previously the > > user time variation was on the order of tenth of a second not > > seconds. In thinking about the issue, I recalled that some > > changes to npx.c were committed 10 days ago. Perhaps, there > > is slightly more context switch overhead in dealing with the > > FPU registers, and this has increased the sys time. > If you can confirm this statement, it would be interesting. Otherwise, > I claim that the changes did not affected the context switch path at > all. The changes were mostly relevant for context(2) family of functions > and debugger access to the FPU register file.
I won't be able to test this possibiolity until later tonight (about 9 hours from now). -- Steve _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"