> I'd be interested in the output of iostat and vmstat while the apache > benchmark is running. Also, I question your '90% faster claim'. > >> RHEL 5: Requests per second: 9426.71 (10.608151 seconds) >> RHEL 6: Requests per second: 5595.64 (17.871 seconds) > > 5595 / 9426 = 0.593 (59.3%)
In the first post that was 8790.99 / 4863.53 = 80% So the 90% seems a bit worse than it is but "80% faster" is still quite a lot. Now what I'd be interested to see is how they compare on real hardware, no VMware or whatever virtual seomthing below the OS. Also I don't think touching the default filesystem and it's config is a good thing here. One can always tune things as needed but the defaults should be sane. Simon > > CC > > PS: If the above is proved wrong then obviously the email was > corrupted in transit. > > > On Tue, Nov 9, 2010 at 10:58 AM, Ashley Penney <apen...@gmail.com> wrote: >> One thing to consider is the 'nobarrier' option for ext4 - apparently >> makes >> a big performance difference. >> Thanks, >> >> On Mon, Nov 8, 2010 at 9:21 PM, Marco Shaw <marco.s...@gmail.com> wrote: >>> >>> I'd love to try it and break it down using SystemTap... I just don't >>> have the free time. >>> >>> "RHEL 5.5 + updates" versus "RHEL 6 Beta 2 July refresh"? >>> >>> On Mon, Nov 8, 2010 at 10:12 PM, Morten P.D. Stevens >>> <mstev...@imt-systems.com> wrote: >>> > 2010/11/9 Marco Shaw <marco.s...@gmail.com>: >>> > >>> >> Well, right off, when you listed your hardware, I never assumed it >>> was >>> >> virtualized. At the very least, I would want to see this test in a >>> >> hypervisor virtualized environment, and even better directly on >>> >> hardware. >>> >> >>> >> Adding an virtual application layer adds so much to the equation >>> that >>> >> your RHEL5 being faster than RHEL6 is no longer valid, in my mind. >>> > >>> > A few days ago I had the same tests on real hardware and VMWare ESXi >>> 4.1 >>> > with exactly the same results. >>> > >>> > If you want you can like to try it yourself. >>> >>> _______________________________________________ >>> rhelv6-beta-list mailing list >>> rhelv6-beta-list@redhat.com >>> https://www.redhat.com/mailman/listinfo/rhelv6-beta-list >> >> >> _______________________________________________ >> rhelv6-beta-list mailing list >> rhelv6-beta-list@redhat.com >> https://www.redhat.com/mailman/listinfo/rhelv6-beta-list >> > > > > -- > RHCE#805007969328369 > > _______________________________________________ > rhelv6-beta-list mailing list > rhelv6-beta-list@redhat.com > https://www.redhat.com/mailman/listinfo/rhelv6-beta-list > _______________________________________________ rhelv6-beta-list mailing list rhelv6-beta-list@redhat.com https://www.redhat.com/mailman/listinfo/rhelv6-beta-list
