On Wed, May 4, 2011 at 3:06 PM, Greg KH <gregkh@suse.de> wrote:
On Wed, May 04, 2011 at 12:12:59PM -0600, Stephen Shaw wrote:
On Tue, May 3, 2011 at 05:00, Greg Freemyer <greg.freemyer@gmail.com> wrote:
Apologies for the top post.
Is there a company/sponsor that if we sent them the money would agree to buy SSDs for the build farm?
I can imagine $8000 in SSDs having a major impact on the build farm. And that in turn could draw in even more obs users/contributors.
Greg
The only issue that I have with this is that OBS would probably not benefit from SSDs. We were having this discussion on a different oS ML. SSDs do really poorly at writing data to the disk.
That is not true at all, SSDs scream at writing and reading. If you haven't tried this out for yourself with one of the "modern" SSDs, you are seriously missing out.
Its very likely that we wouldn't gain much from buying a bunch of SSDs.
Now that is true, as it doesn't seem like we are I/O bound, but CPU bound for the most part.
Getting some more big multi-processor servers would help out OBS a lot, but I think that $8000 isn't going to help us much there :(
thanks,
greg k-h
In a thread from last fall, a user reported testing putting BUILD_ROOT on a ram disk. He reported a 2x speed improvement. Thus at least in that case, he was disk bound. I don't know on build.opensuse.org. Assuming it is disk bound, there are 8 VMs per server I think and 32 GB per BUILD_ROOT seems sufficient, so a single 256 GB SSD would provide BUILD_ROOT mounts for all of the VMs. Thus those big multi-processor servers would see a speed bump from a fairly modest cost increase. This basic conversation has taken place a couple times on one of the other lists, but it peters out at this point. No one has said if the actual build farm would benefit or not. Greg -- To unsubscribe, e-mail: opensuse-project+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-project+help@opensuse.org