Messages in this thread | | | Subject | Re: [2.1.130-3] Page cache DEFINATELY too persistant... feature? | From | Zlatko Calusic <> | Date | 30 Nov 1998 23:27:07 +0100 |
| |
Rik van Riel <H.H.vanRiel@phys.uu.nl> writes:
> I am now trying: > if (buffer_over_borrow() || pgcache_over_borrow() || > atomic_read(&nr_async_pages) > shrink_mmap(i, gfp_mask); > > Note that this doesn't stop kswapd from swapping out so > swapout performance shouldn't suffer. It does however > free up memory so kswapd should _terminate_ and keep the > amount of I/O done to a sane level.
This still slows down swapping somewhat (20-30%) in my tests.
> > Note that I'm running with my experimentas swapin readahead > patch enabled so the system should be stressed even more > than normally :) >
I tried your swapin_readahead patch but it didn't work right:
swap_duplicate at c012054b: entry 00011904, unused page swap_duplicate at c012054b: entry 002c8c00, unused page swap_duplicate at c012054b: entry 00356700, unused page swap_duplicate at c012054b: entry 00370f00, unused page swap_duplicate at c012054b: entry 0038d000, unused page swap_duplicate at c012054b: entry 0039d100, unused page swap_duplicate at c012054b: entry 0000b500, unused page
c012054b is read_swap_cache_async()
Memory gets eaten when I bang MM, and after sometime system blocks. I also had one FS corruption, thanks to that. Didn't investigate further.
Do you have a newer version of the patch?
Regards, -- Posted by Zlatko Calusic E-mail: <Zlatko.Calusic@CARNet.hr> --------------------------------------------------------------------- Multitasking attempted. System confused.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |