From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com>, linux-fsdevel@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net
Subject: [PATCH] f2fs: avoid frequent background GC
Date: Thu, 25 Apr 2013 11:44:02 +0900
Message-id: <1366857842-17240-1-git-send-email-jaegeuk.kim@samsung.com>
DLP-Filter: Pass
To: unlisted-recipients:; (no To-header on input)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1156
Lines: 33

If there is no victim segments selected by background GC, let's wait
a little bit longer time to collect dirty segments.
By default, let's give 10 minutes.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/gc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
index 30b2db0..1190d57 100644
--- a/fs/f2fs/gc.h
+++ b/fs/f2fs/gc.h
@@ -13,9 +13,9 @@
 						 * whether IO subsystem is idle
 						 * or not
 						 */
-#define GC_THREAD_MIN_SLEEP_TIME	10000 /* milliseconds */
+#define GC_THREAD_MIN_SLEEP_TIME	10000	/* milliseconds */
 #define GC_THREAD_MAX_SLEEP_TIME	30000
-#define GC_THREAD_NOGC_SLEEP_TIME	10000
+#define GC_THREAD_NOGC_SLEEP_TIME	600000	/* wait 10 min */
 #define LIMIT_INVALID_BLOCK	40 /* percentage over total user space */
 #define LIMIT_FREE_BLOCK	40 /* percentage over invalid + free space */
 
-- 
1.8.1.3.566.gaa39828

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/