linux-kernel - Re: [PATCH] mm/vmalloc: lock contention optimization under multi-threading

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Message-ID: <ZdW2oo8Eor0tD9Yi@pc636>
Date: Wed, 21 Feb 2024 09:38:58 +0100
From: Uladzislau Rezki <urezki@...il.com>
To: rulinhuang <rulin.huang@...el.com>
Cc: urezki@...il.com, akpm@...ux-foundation.org, colin.king@...el.com,
	hch@...radead.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	lstoakes@...il.com, tim.c.chen@...el.com, zhiguo.zhou@...el.com,
	wangyang.guo@...el.com, tianyou.li@...el.com
Subject: Re: [PATCH] mm/vmalloc: lock contention optimization under
 multi-threading

Hello, Rulinhuang!

>
> Hi Rezki, we have submitted patch v2 to avoid the partial 
> initialization issue of vm's members and separated insert_vmap_area() 
> from alloc_vmap_area() so that setup_vmalloc_vm() has no need to 
> require lock protection. We have also verified the improvement of 
> 6.3% at 160 vcpu on intel icelake platform with this patch.
> Thank you for your patience.
>
Please work on the mm-unstable and try to measure it on the latest tip.

--
Uladzislau Rezki