linux-kernel - Re: [External] : Re: [bug-report] 5-9% FIO randomwrite ext4 perf regression on 6.12.y kernel

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Message-ID: <20241126180922.GA18892@lst.de>
Date: Tue, 26 Nov 2024 19:09:22 +0100
From: Christoph Hellwig <hch@....de>
To: Saeed Mirzamohammadi <saeed.mirzamohammadi@...cle.com>
Cc: Christoph Hellwig <hch@....de>, Keith Busch <kbusch@...nel.org>,
	Paul Webb <paul.x.webb@...cle.com>, Jens Axboe <axboe@...nel.dk>,
	Phil Auld <pauld@...hat.com>,
	Chaitanya Kulkarni <chaitanyak@...dia.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>,
	Ramanan Govindarajan <ramanan.govindarajan@...cle.com>,
	Sagi Grimberg <sagi@...mberg.me>,
	Nicky Veitch <nicky.veitch@...cle.com>
Subject: Re: [External] : Re: [bug-report] 5-9% FIO randomwrite ext4 perf
 regression on 6.12.y kernel

On Tue, Nov 26, 2024 at 06:06:19PM +0000, Saeed Mirzamohammadi wrote:
> I was waiting for the results but yes that recovered the regression as well (snippet below), thanks! I think that’s the best way to go here. Should I make it into a patch and send it for review?

I'll send out the formal patch tomorrow morning, need to do a little
more digging for a good detailed commit log describing what went
wrong here.