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Message-ID: <Y8N/Te/t9aLkKi90@google.com>
Date: Sun, 15 Jan 2023 13:21:33 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Mike Kravetz <mike.kravetz@...cle.com>
Cc: Sergey Senozhatsky <senozhatsky@...omium.org>,
Minchan Kim <minchan@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCHv2 0/4] zsmalloc: make zspage chain size configurable
On (23/01/14 13:34), Mike Kravetz wrote:
> I did the following:
>
> - Start with clean v6.2-rc3
> Perform echo, did not see issue
>
> - Applied your 5 patches (includes the zsmalloc: turn chain size config option
> into UL constant patch). Took default value for ZSMALLOC_CHAIN_SIZE of 8.
> Performed echo, recreated issue.
>
> - Changed ZSMALLOC_CHAIN_SIZE to 1.
> Perform echo, did not see issue
The patch set basically just adjusts $NUM in calculate_zspage_chain_size():
for (i = 1; i <= $NUM; i++)
It changes default 4 to 8. Can't really see how this can cause problems.
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