How we got to this question:
----------------------------
We have been using 5 Compaq 8500's running NT 4.0 using Loadrunner
(Mercury Interactive) to test the load. The Linux box was barely
able to hold the load, but it's support tool sar, (vm|mp)stat left a
fellow engineer to be disgusted. So, I recompiled Apache on
Solaris 8 on a 420R and he didn't have a problem. Since we have 4
Compaq 5500's available, we were looking at alternatives to what
was initially installed. Test load of 1200/1500 http connections/sec
Other engineers in the group started to ask question about how
well FreeBSD handled Posix threads and what the limitations were.
Since I opened my mouth, I said I would ask a few questions. And
being a FreeBSD fan, I decided to push you guys.... The other
alternatives were Linux and Solaris x86....
+-ADT
-----Original Message-----
From: Alfred Perlstein [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, April 24, 2001 9:24 AM
To: Alan Tegel
Cc: [EMAIL PROTECTED]
Subject: Re: Question about Posix Threads
* Alan Tegel <[EMAIL PROTECTED]> [010424 07:29] wrote:
> How well does FreeBSD 4.3 do with Posix Threads?
>
> This is a question I posted to a news group.
>
> Hello. I work for a unix performance and capacity group. owever, we have
> had some dismal performance from RedHat 6.2. The question that I would
> like to know is how well does FreeBSD support Posix threads and is there
> any caveats in perfromance and stability? Note, we have the ability to
> push Unix (whatever version) to the extremes (very fun and very insane
> job)....
>
> Any comments would be helpful.
How is performance dismal under redhat? FreeBSD should do a really
good job of running thousands of threads as long as you don't have
too much disk IO since all the threads are multiplexed into a single
process, if you have an IO intensive program FreeBSD threads will
probably not help you all that much. There are plans on replacing
the FreeBSD threads library with a multiplexed userland<->kernel
scheme in the near future.
--
-Alfred Perlstein - [[EMAIL PROTECTED]]
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