From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from stingray.netplus.net (root@stingray.netplus.net [206.250.192.19]) by kvack.org (8.8.7/8.8.7) with ESMTP id NAA21769 for ; Sun, 10 Jan 1999 13:45:13 -0500 Message-ID: <3698F4E1.715105C6@netplus.net> Date: Sun, 10 Jan 1999 12:43:45 -0600 From: Steve Bergman MIME-Version: 1.0 Subject: Re: Results: pre6 vs pre6+zlatko's_patch vs pre5 vs arcavm13 References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Linus Torvalds Cc: Andrea Arcangeli , brent verner , "Garst R. Reese" , Kalle Andersson , Zlatko Calusic , Ben McCann , bredelin@ucsd.edu, linux-kernel@vger.rutgers.edu, linux-mm@kvack.org, Alan Cox , "Stephen C. Tweedie" List-ID: Linus Torvalds wrote: > Can you run pre6+zlatko with just the mm/page_alloc.c one-liner reverted > to pre5? That is, take pre6+zlatko, and just change > > try_to_free_pages(gfp_mask, freepages.high - nr_free_pages); > > back to > > try_to_free_pages(gfp_mask, SWAP_CLUSTER_MAX); > OK, here are the updated results: 'Image test' in 128MB: pre6+zlatko's_patch 2:35 and with requested change 3:09 pre6 2:27 pre5 1:58 arcavm13 9:13 I also ran the kernel compile test: In 12MB: Elapsed Maj. Min. Swaps ----- ------ ------ ----- pre6+zlatko_patch 22:14 383206 204482 57823 and with requested change 22:23 378662 198194 51445 pre6 20:54 352934 191210 48678 pre5 19:35 334680 183732 93427 arcavm13 19:45 344452 180243 38977 The change seems to have hurt it in both cases. What I am seeing on pre6 and it's derivitives is a *lot* of *swapin* activity. Pre5 almost exclusively swaps *out* during the image test, averaging about 1.25MB/sec (spends a lot of time at around 2000k/sec) with very little swapping in. All the pre6 derivitives swap *in* quite heavily during the test. The 'so' number sometimes drops to 0 for seconds at a time. It also looks like pre6 swaps out slightly more overall (~165MB vs 160MB). -Steve -- This is a majordomo managed list. To unsubscribe, send a message with the body 'unsubscribe linux-mm me@address' to: majordomo@kvack.org