Date: Fri, 1 Jun 2012 14:35:29 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: SuperPages utilization survey Message-ID: <alpine.BSF.2.00.1206011429160.20357@wojtek.tensor.gdynia.pl> In-Reply-To: <jqac8f$6mn$1@dough.gmane.org> References: <jqac8f$6mn$1@dough.gmane.org>
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> http://people.freebsd.org/~ivoras/stuff/spsurvey.py > > The results from three systems (with the script being run as root) are here: > > http://people.freebsd.org/~ivoras/stuff/spsurvey_desktop.txt > http://people.freebsd.org/~ivoras/stuff/spsurvey_mixserver.txt > http://people.freebsd.org/~ivoras/stuff/spsurvey_webserver.txt your "webserver" is actually database serwer with addons. mixserver - mix of what? My "mixserver" have certainly far different mix of your "mixserver", as i don't use python heavily for example, while use squid, clamav (both fits well in superpages), and don't run large memory postgres process. What is "desktop". A computer sitting on the desk? May run a lot of different programs. Your "desktop" as i can see use KDE bloatware and postgres. As for me, such namings are completely imprecise and such statistics say NOTHING. What REAL knowledge i acquired from your work is that postgres are very well fit for superpage mapping, if large DB buffer is used. Actually - Whenever there are long running processes in the system that allocate and use large memory chunks then superpage promotion will work. My idea - lets do a survey based on PROCESS NAME. this will give a really meaningful information.
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