Re: patch: make software suspend speedup in vmware virtual machine.

From: Pavel Machek (pavel@ucw.cz)
Date: Sat Oct 19 2002 - 17:01:41 EST

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In reply to: Hu Gang: "patch: make software suspend speedup in vmware virtual machine."
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Hi!

> Hello all:
>
> With this patch 2.5.43 can resume only need ~5sec.
> without this patch 2.5.43 also can resume, but need ~240sec.
>
> This patch also can work in normal machine. But need more test.

You probably can move __flush_tlb() out of both loops, it is there
only to aid debugging. _But_ I'd like to keep it as is. __flush_tlb()
is there to prevent heisenbugs.
Pavel

> --------------------------------------------------
> --- arch/i386/kernel/suspend.c~old Wed Oct 16 19:39:42 2002
> +++ arch/i386/kernel/suspend.c Wed Oct 16 19:38:21 2002
> @@ -290,8 +290,8 @@
> for (loop2=0; loop2 < PAGE_SIZE; loop2++) {
> *(((char *)((pagedir_nosave+loop)->orig_address))+loop2) =
> *(((char *)((pagedir_nosave+loop)->address))+loop2);
> - __flush_tlb();
> }
> + __flush_tlb();
> }
>
> restore_processor_context();
>
>
> --
> - Hu Gang

-- 
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org
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