Date: Tue, 10 Dec 1996 08:37:50 -0500 (EST) From: "Eric J. Chet" <ejc@gargoyle.bazzle.com> To: alexj@motaba.tmc.edu.tw Cc: freebsd-current@FreeBSD.ORG Subject: Re: Amazing to MIT Pthread-1.60b6 & Pthread built in FreeBSD-2.2-ALPHA Message-ID: <Pine.BSF.3.95.961210083528.6935A-100000@gargoyle.bazzle.com> In-Reply-To: <3.0.32.19961210135325.00de1af0@mail.tmc.edu.tw>
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On Tue, 10 Dec 1996 alexj@motaba.tmc.edu.tw wrote:
> It surprised me so much !!
>
> I wrote a small program to test the performance of MIT PThread-1.60b6 (MIT) used in FreeBSD-2.2-ALPHA & the pthread built in FBSD-2.2-ALPHA (FBSD).
>
> I had thought that the performance of FBSD should be better than that of
>
> MIT. However, I am wrong after making this test.
>
> It's really amazing. The performance of MIT is much better than that
>
> of FBSD.
>
> Is there any problem in FreeBSD-2.2-ALPHA ?
>
>
> gcc pbench.c -lc_r
>
> ================================================================
>
> FreeBSD 2.2-ALPHA built-in PTHREAD test....
>
> Testing pthread_create() 1000 times...spending 3.228051 seconds
>
> Testing pthread_lock() 10000 times...spending 0.97357 seconds
>
> Testing pthread_yield() 10000 times...spending 12.1259162 seconds
>
> ================================================================
>
>
> pgcc pbench.c
>
> ================================================================
>
> MIT PTHREAD 1.60B6 performance test....
>
> Testing pthread_create() 100000 times...spending 0.1063555 seconds
>
> Testing pthread_lock() 1000000 times...spending 1.168608 seconds
>
> Testing pthread_yield() 1000000 times...spending 9.333843 seconds
>
> ==================================================================
>
>
> The attachment is my program source code
>
>
Hello
Could you please compile both versions with either gcc or pgcc,
those numbers are meaningless.
Eric J. Chet
- ejc@bazzle.com
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