From: "Huang, Ying" <ying.huang@linux.alibaba.com>
To: Nikhil Dhama <nikhil.dhama@amd.com>
Cc: <akpm@linux-foundation.org>,
<raghavendra.kodsarathimmappa@amd.com>, <bharata@amd.com>,
<huang.ying.caritas@gmail.com>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>, <subramaniam.kv@amd.com>,
<santosh.shukla@amd.com>, <shivankg@amd.com>
Subject: Re: [FIX PATCH] mm: pcp: fix pcp->free_count reduction on page allocation
Date: Wed, 15 Jan 2025 19:06:21 +0800 [thread overview]
Message-ID: <87wmew72vm.fsf@DESKTOP-5N7EMDA> (raw)
In-Reply-To: <20250109114230.24203-1-nikhil.dhama@amd.com> (Nikhil Dhama's message of "Thu, 9 Jan 2025 17:12:29 +0530")
Nikhil Dhama <nikhil.dhama@amd.com> writes:
>> The present division by two appears to be somewhat randomly chosen.
>> And as far as I can tell, this patch proposes replacing that with
>> another somewhat random adjustment.
>>
>> What's the actual design here? What are we attempting to do and why,
>> and why is the proposed design superior to the present one?
>
> We are further analyzing both the designs and their impact on pcp list.
>
>
>> Nice, but might other workloads on other machines get slower?
>
> We are studying the impact of this on other network workloads like netperf,
> and will post those results soon.
To tune this parameter, in addition to network workloads, other kinds of
workloads need be evaluated too.
---
Best Regards,
Huang, Ying
next prev parent reply other threads:[~2025-01-15 11:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-07 9:17 [FIX PATCH] mm: pcp: fix pcp->free_count reduction on page allocation Nikhil Dhama
2025-01-08 5:05 ` Andrew Morton
2025-01-09 11:42 ` Nikhil Dhama
2025-01-15 11:06 ` Huang, Ying [this message]
2025-01-15 11:19 ` [FIX PATCH] mm: pcp: fix pcp->free_count reduction on page allocation, Huang, Ying
2025-01-29 4:31 ` Andrew Morton
2025-02-12 5:04 ` [FIX PATCH] mm: pcp: fix pcp->free_count reduction on page allocation Nikhil Dhama
2025-02-12 8:40 ` Huang, Ying
2025-02-12 10:06 ` Nikhil Dhama
2025-03-19 8:14 ` [PATCH -V2] mm: pcp: scale batch to reduce number of high order pcp flushes on deallocation Nikhil Dhama
2025-03-25 8:00 ` Raghavendra K T
2025-03-25 17:23 ` Nikhil Dhama
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