Messages in this thread | | | Date | Wed, 16 Jan 2002 00:49:10 +0300 | From | Peter Zaitsev <> | Subject | Re[2]: 3.5G user space speed |
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Hello Brian,
Wednesday, January 16, 2002, 12:41:56 AM, you wrote: >> >> Well. May be you can tell about the numbers a bit ? I can chose 3.0G >> for user instead of 3.5G for user with not really huge loss, but I'd >> like to know how much it will increase speed and in which cases, also >> about standard 2/2 mode.
BG> I don't have quantifiable numbers available, but the speed issue will be BG> a result of the kernel running out of direct-mapped memory and having to BG> start swapping even though there is free memory in the system (in the BG> highmem zone). The best thing you can do is try both and find what BG> works best for you.
So how this should appear ? Like real swapping or like increased system CPU usage because of moving pages to/from zone.
-- Best regards, Peter mailto:pz@spylog.ru
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