From: Ganesh Mahendran <opensource.ganesh@gmail.com>
To: minchan@kernel.org, ngupta@vflare.org,
sergey.senozhatsky.work@gmail.com, akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Ganesh Mahendran <opensource.ganesh@gmail.com>
Subject: [PATCH] mm/zsmalloc: avoid unnecessary iteration in get_pages_per_zspage()
Date: Thu, 5 May 2016 13:17:27 +0800 [thread overview]
Message-ID: <1462425447-13385-1-git-send-email-opensource.ganesh@gmail.com> (raw)
if we find a zspage with usage == 100%, there is no need to
try other zspages.
Signed-off-by: Ganesh Mahendran <opensource.ganesh@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
---
mm/zsmalloc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index fda7177..310c7b0 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -765,6 +765,9 @@ static int get_pages_per_zspage(int class_size)
if (usedpc > max_usedpc) {
max_usedpc = usedpc;
max_usedpc_order = i;
+
+ if (max_usedpc == 100)
+ break;
}
}
--
1.7.9.5
next reply other threads:[~2016-05-05 5:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-05 5:17 Ganesh Mahendran [this message]
2016-05-05 10:03 ` [PATCH] mm/zsmalloc: avoid unnecessary iteration in get_pages_per_zspage() Sergey Senozhatsky
2016-05-06 3:09 ` Minchan Kim
2016-05-06 4:25 ` Ganesh Mahendran
2016-05-06 4:37 ` Minchan Kim
2016-05-06 9:08 ` Sergey Senozhatsky
2016-05-06 9:33 ` Sergey Senozhatsky
2016-05-09 5:01 ` Minchan Kim
2016-05-11 9:34 ` Sergey Senozhatsky
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