From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Andrew Morton <akpm@linux-foundation.org>,
Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: [PATCH 5/6] zsmalloc: break out of loop when found perfect zspage order
Date: Tue, 25 Oct 2022 01:12:12 +0900 [thread overview]
Message-ID: <20221024161213.3221725-6-senozhatsky@chromium.org> (raw)
In-Reply-To: <20221024161213.3221725-1-senozhatsky@chromium.org>
If we found zspage configuration that gives us perfect
100% used percentage (zero wasted space) then there is
no point it trying any other configuration
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
---
mm/zsmalloc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index fa55e0c66f8d..40a09b1f63b5 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -790,6 +790,9 @@ static int get_pages_per_zspage(struct zs_pool *pool, int class_size)
max_usedpc = usedpc;
max_usedpc_order = i;
}
+
+ if (usedpc == 100)
+ break;
}
return max_usedpc_order;
--
2.38.0.135.g90850a2211-goog
next prev parent reply other threads:[~2022-10-24 16:12 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-24 16:12 [PATCH 0/6] zsmalloc/zram: configurable zspage size Sergey Senozhatsky
2022-10-24 16:12 ` [PATCH 1/6] zsmalloc: turn zspage order into runtime variable Sergey Senozhatsky
2022-10-24 16:12 ` [PATCH 2/6] zsmalloc/zram: pass zspage order to zs_create_pool() Sergey Senozhatsky
2022-10-24 16:12 ` [PATCH 3/6] zram: add pool_page_order device attribute Sergey Senozhatsky
2022-10-24 16:12 ` [PATCH 4/6] Documentation: document zram pool_page_order attribute Sergey Senozhatsky
2022-10-24 16:12 ` Sergey Senozhatsky [this message]
2022-10-24 16:12 ` [PATCH 6/6] zsmalloc: make sure we select best zspage size Sergey Senozhatsky
2022-10-25 3:26 ` [PATCH 0/6] zsmalloc/zram: configurable " Bagas Sanjaya
2022-10-25 3:42 ` Sergey Senozhatsky
2022-10-25 8:40 ` Bagas Sanjaya
2022-10-25 4:30 ` Sergey Senozhatsky
2022-10-25 7:57 ` Sergey Senozhatsky
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20221024161213.3221725-6-senozhatsky@chromium.org \
--to=senozhatsky@chromium.org \
--cc=akpm@linux-foundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=minchan@kernel.org \
--cc=ngupta@vflare.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox