Re: Open Transport vs. Sockets
Re: Open Transport vs. Sockets
- Subject: Re: Open Transport vs. Sockets
- From: Mike Cohen <email@hidden>
- Date: Thu, 04 Apr 2002 11:13:17 -0500
No, my application runs only under X, so I'm not doing any tests under 9. I
figured the difference was due to OT running on top of BSD networking.
On 4/4/02 4:55 AM, "Peter Sichel" <email@hidden> wrote:
>
Are you measuring:
>
>
OT on 9 versus BSD Sockets on X (which is often dominated by
>
the difference between cooperative versus pre-emptive multitasking)?
>
>
The OT shim atop BSD networking on X (which Apple claims is 5-10% slower)?
>
>
>
- Peter
>
>
>
At 5:21 PM -0500 4/3/02, Mike Cohen wrote:
>
> I just did some performance test on my application with OT vs. BSD Sockets.
>
> Both versions of my application do exactly the same thing & both APIs are
>
> encapsulated within a low-overhead class. I find that the version using
>
> sockets is consistantly faster.
>
>
>
> I also tested thread manager vs. MP tasks, but there was very little
>
> difference, although I haven't optimized my code to take advantage of
>
> preemptive tasks.
>
>
>
> The application connects to a server which runs a script and queries certain
>
> information from the client. Here are the average times (taken by running
>
> each version 5 times) for deployment builds of each version, obtained by
>
> calling TickCount before & after one server transaction:
>
>
>
> OT, Thread Mgr: 530.6
>
> Sockets, Thread Mgr: 351
>
> OT, MP Tasks: 540.4
>
> Sockets, MP Tasks: 358.4
>
>
>
> --
>
> [ Mike Cohen | http://www.macmegasite.com/ ]
>
> [ email@hidden | http://www.worldbeatplanet.com/ ]
--
[ Mike Cohen |
http://www.macmegasite.com/ ]
[ email@hidden |
http://www.worldbeatplanet.com/ ]
Sound is the same for all the world - Youssou N'dour, "Eyes Open"
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