Re: Swap File improvement.

Zlatko Calusic (Zlatko.Calusic@CARNet.hr)
31 Dec 1998 17:53:15 +0100

Eric wrote:
> The following patch allows asynchronous swapping to swap files,
> improving their performance immensely.
>
> Additionally since now all swapping goes there brw_page, the semantics are much
> cleaner, and we don't need to maintain ll_rw_swap_file.

Great!

I tested your changes in 2.2.0-pre1 and I'm astonished with a
performance change.

Before, swap files (unlike swap partitions) were not usable at all,
that is, speed was abysmal. With your changes swap files now perform
at about 80% of swap partition performance, exactly as I was
expecting.

Very good work, indeed.

Happy New Year to you and yours!

Happy New 1999. to all the Linux hackers!

-- 
Zlatko


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