Re: apache httpd performance


On Sun, 22 Apr 2007, Stefan Lambrev wrote:

I'm using my laptop to run ab in both test, and 2 totally different servers :) That's why I do not pretend that the benchmark is done the right way.

The linux host is with pentium 4 single core processor, The freebsd host is amd64 athlon 3200+ (2GHz) - single core too

Both servers share same dns server(s), so I do not think that the DNS can be issue.

I'm using 3com network card - 100mbps - xl.

I'll test with accf_http and will report back. If there is a problem (as I'm still not sure that there is) I'll make more accurate benchmark and will try to find where is the problem (with your help) :)

If the hardware used for the servers and clients isn't identical between the two tests, then the results are at best misleading. In this case, assuming I understand your hardware description correctly, the significant differences in server hardware make any comparison utterly meaningless. We'd be better off ignoring the Linux results entirely and simply try instead to optimize your FreeBSD performance. If you want to do side-by-side OS comparisons, you need to use the same hardware configurations in an otherwise identical software configuration.

If this is 6.x, try setting net.isr.direct to 1. If running threaded apps, try using libthr instead of libpthread. If using uniprocessor hardware, make sure you are using a UP kernel rather than an SMP kernel.

Robert N M Watson
Computer Laboratory
University of Cambridge
_______________________________________________
freebsd-performance@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-performance
To unsubscribe, send any mail to "freebsd-performance-unsubscribe@xxxxxxxxxxx"

Relevant Pages

  • Re: Windows 2003 Service Pack 2 Active Directory Upgrade
    ... In my opinion you should document yourself with your hardware vendor/support ... servers. ... so that you don't install the SP2 during office hours if something ... installation of the service pack. ...
    (microsoft.public.windows.server.active_directory)
  • Re: Opinions Wanted: Dell PowerEdge Servers ... ?
    ... They're not as good as in the past, but we have had hardware assistance on a FreeBSD-driven server on the condition of proving hardware fault using Dell's own bootable diagnostics. ... our support experience may be artificially "enhanced" compared to others because we buy off a large govt. ... our overall experience with Dell support has actually been as good or better than with many other vendors. ... One thing I do know is Dell's first tier support for servers is worthless, but as Greg says, you just need to establish that you know what you're doing, and you can bypass them. ...
    (freebsd-questions)
  • Build for Flexibility, Buy for Economy
    ... Jeff Atwood blogged about Google building their own servers instead of buying ... Google built their own servers on plywood back in 1999. ... computer hardware first hand? ... the same economics that have shaped the software ...
    (soc.culture.malaysia)
  • Re: Could my slow computer be caused by a hardware fault?
    ... If I am in Internet Explorer and go to Bookmarks and hold my cursor over the down arrow it moves at about 1 file per second. ... I am no expert but I am wondering whether it could be a fault on the hard drive or other hardware problem? ... beginning of the disk, and 40MB/sec near the end of the ... To benchmark a CPU, I use a program like this as a quick check. ...
    (microsoft.public.windowsxp.hardware)
  • Re: FreeBSD Machines dieing, weve tried so much....
    ... dmesg and hardware specs, etc. ... We have two different servers crashing. ... these two are the ones with the highest load. ... crashes next. ...
    (freebsd-questions)