On Dec 1, 2003, at 10:15 PM, Scott Long wrote: > Jonathan Mini wrote: >> I have found that the cost of printing the spew often >> slows down compiles measurably, especially when spewing >> to an xterm running on a local XFree86 process. Even >> with syscons, this is noticeable. >> I generally tend to run my builds behind the screen >> port these days, which helps (screen implements a >> virtual display buffer that disconnects screen updates >> from the display client and the slave pty). Another >> optimization worth noting is running make -q, which >> silences a lot of that spam (urban legend has it that >> the synchronization in parallel makes to write the build >> messages causes noticeable amounts of contention). > > I regularly use -s. With the pipe code being completely > Giant-free, I don't see a significant performance difference > anymore on an SMP machine when the output is not supressed. Ah, I meant -s. And, that is good news. I am still running on a 4.x system most of the time, and (sigh) Linux 2.4.x the rest of the time. -- Jonathan Mini mini_at_freebsd.org http://www.freebsd.orgReceived on Mon Dec 01 2003 - 21:25:26 UTC
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