Messages in this thread | | | Date | Tue, 27 Jan 2004 00:21:48 +0100 | From | Pavel Machek <> | Subject | Re: pmdisk working on ppc (WAS: Help port swsusp to ppc) |
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Hi!
> > > Ah, also: The "Freeing memory" phase takes forever. That should > > > really be fixed. > > > > Well, it does the trick for me, but it takes 50% or so of suspend > > time. Some memory managment guru making "freeing memory" faster would > > certainly be welcome. > > Pavel > > PS: But I'd like to keep it simple... > > Haven't looked at it yet. Several crash reports so far, mostly > lockups right after printing the number of pages to save. I wonder > if we have something broken in there. It dies for me once too at > this point. > > Also, at least on pmac laptops, the HD is usually so fast, that > I suspect spending 10 seconds freeing things is less efficient than > spending this 10 seconds writing 200Mb of data to disk :) Also, one > wakup, it's quite painful to see everything be swapped in again. It > may make sense to be less agressive on the memory freeing, though > finding a good balance isn't easy.
Notice that swsusp needs half of physical memory free by design. That means that we need _some_ freeing. Nigel's swsusp2 works around that at cost of more complicated implementation. Pavel -- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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