Re: [PATCH] backports: speed up building with bash
Johannes Berg <[email protected]>
| Newsgroups | org.kernel.vger.backports |
|---|---|
| Message-ID | <[email protected]> |
On Tue, 2019-12-03 at 16:06 +0100, Johannes Berg wrote: > From: Johannes Berg <[email protected]> > > When building with /bin/sh -> bash, things are SUPER slow (at least > for me), because bash takes a LOOONG time to look at the environment > variables (and we typically have around 6k), adding ~300ms to each > bash invocation for me. The real results are like this: Completely clean build, after git clean -fdxq, but I have ccache primed so all the stuff is build overhead - gcc is ccache and just returns directly from the cache. without the patch: real 9m17.180s user 24m38.063s sys 0m32.138s with the patch: real 0m18.157s user 0m24.553s sys 0m13.342s I'll let those results speak for themselves ... johannes -- To unsubscribe from this list: send the line "unsubscribe backports" in