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Re: 8.0 performance issue when running build.sh?



On Thu, Jul 12, 2018 at 03:18:08PM -0400, Thor Lancelot Simon wrote:
> On Thu, Jul 12, 2018 at 07:39:10PM +0200, Martin Husemann wrote:
> > On Thu, Jul 12, 2018 at 12:30:39PM -0400, Thor Lancelot Simon wrote:
> > > Are you running the builds from tmpfs to tmpfs, like the build cluster
> > > does?
> > 
> > No, I don't have enough ram to test it that way.
> 
> So if 8.0 has a serious tmpfs regression... we don't yet know.

I *did* use tempfs, but not for everything.

Do you happen to know why 

	vmstat -e | fgrep "bus_dma bounces"

shows a > 500 rate e.g. on b45? I never see a single bounce on any of my
amd64 machines. The build slaves seem to do only a few of them though.

Martin


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