Smalltalk - Re: VM/Settings for Deploy

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Re: VM/Settings for Deploy

Posted by Mariano Martinez Peck on Jun 24, 2010; 8:03am
URL: https://forum.world.st/VM-Settings-for-Deploy-tp2265300p2266602.html

On Wed, Jun 23, 2010 at 11:03 AM, Sven Van Caekenberghe <[hidden email]> wrote:

Hi,

I am very happy that I managed to create a very small deploy image based on Pharo-1.1-11400-rc2. This image contains all of Seaside and Glorp/PostgreSQL and is still only about 12Mb. All this thanks to ScriptLoader's #cleanUpForProduction.

Thanks a lot to all who made this possible.

I noticed however that this image is handling my HTTP/Seaside benchmark consistenly faster on my Mac, about 80 to 85 req/s (Mac OS X 10.6.4, 2.4 Ghz Intel Core 2 Duo with 4GB RAM) than on my server (RHEL 4 (update 7), 2 Ghz AMD Opteron 175 Dual Core with 4GB RAM), about 55 to 65 req/s.

On my Mac I use the Squeak 4.2.4beta1U VM, on my server the Squeak-4.0.3.2202 Unix VM.

Next I tried the Squeak-4.0.3.2202 VM on my Mac. This resulted in about 60 to 70 req/s.

Is it normal that the Unix VM is slower than the Mac VM ?

For what I have been experimenting, and with the default configuration, yes.
I mean, if you go to the website, download both VMs, and run, I think that yes. Maybe compiling Linux vms with particular flags in the configure, you may have better results.

I said this in another thread I people said I was talking bullship, so, I won't talk any more.

I let you two links in case you are interested to read:

http://forum.world.st/Pharo-apparently-slow-on-linux-td1304643.html#a1304643

http://forum.world.st/Squeak-VM-FT2Plugin-all-Pharo-1-0-rc3-tests-green-tp1692857p1692857.html

Shouldn't a Linux server box be faster at networking/IO/CPU than a MacBook Pro running the full Mac OS X GUI ?

not necessary. Because you depends on the VM I think.

Is there anything simple (low hanging fruit kind of stuff) that I can do to improve performance, either using command line options to the VM or using settings at the image level ?

yes. First the flags when compiling the VM. Check the version of GCC.
Then you can check all the parameters of the GC and etc...but I have no idea how to tune this.

I currently run the VM with:

Squeak-4.0.3.2202-linux_i386/bin/squeak -vm-display-null -vm-sound-null deploy.image

What are others using in the Seaside deploy area ?

Thanks,

Sven

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