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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Minchan Kim <minchan@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: [PATCH 4/4] zsmalloc: set default zspage chain size to 8
Date: Thu,  5 Jan 2023 14:35:10 +0900	[thread overview]
Message-ID: <20230105053510.1819862-5-senozhatsky@chromium.org> (raw)
In-Reply-To: <20230105053510.1819862-1-senozhatsky@chromium.org>

This changes key characteristics (pages per-zspage and objects
per-zspage) of a number of size classes which in results in
different pool configuration. With zspage chain size of 8 we
have more size clases clusters (123) and higher huge size class
watermark (3632 bytes).

Please read zsmalloc documentation for more details.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
---
 mm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index 995a7c4083c2..9ab5c1996a04 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -193,7 +193,7 @@ config ZSMALLOC_STAT
 
 config ZSMALLOC_CHAIN_SIZE
 	int "Maximum number of physical pages per-zspage"
-	default 4
+	default 8
 	range 1 16
 	depends on ZSMALLOC
 	help
-- 
2.39.0.314.g84b9a713c41-goog


      parent reply	other threads:[~2023-01-05  5:36 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-05  5:35 [PATCH 0/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky
2023-01-05  5:35 ` [PATCH 1/4] zsmalloc: rework zspage chain size selection Sergey Senozhatsky
2023-01-05  5:35 ` [PATCH 2/4] zsmalloc: skip chain size calculation for pow_of_2 classes Sergey Senozhatsky
2023-01-05  5:35 ` [PATCH 3/4] zsmalloc: make zspage chain size configurable Sergey Senozhatsky
2023-01-05 19:49   ` kernel test robot
2023-01-06  2:40     ` Sergey Senozhatsky
2023-01-05  5:35 ` Sergey Senozhatsky [this message]

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