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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org
Cc: "André Almeida" <andrealmeid@igalia.com>,
	"Darren Hart" <dvhart@infradead.org>,
	"Davidlohr Bueso" <dave@stgolabs.net>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Juri Lelli" <juri.lelli@redhat.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Valentin Schneider" <vschneid@redhat.com>,
	"Waiman Long" <longman@redhat.com>
Subject: Re: [RFC v2 PATCH 0/4] futex: Add support task local hash maps.
Date: Thu, 31 Oct 2024 18:47:36 +0100	[thread overview]
Message-ID: <20241031174736.apc_hFru@linutronix.de> (raw)
In-Reply-To: <20241031155640.Fhtm3uFD@linutronix.de>

On 2024-10-31 16:56:43 [+0100], To linux-kernel@vger.kernel.org wrote:
> Pinning the bench to individual CPUs belonging to a NUMA node and
> running the same test with 110 threads only (avg over 5 runs):
>           ops/sec global	ops/sec local
> node 0		2278572.2	2534827.4
> node 1		2229838.6	2437498.8
> node 0+1	2542602.4	2535749.8

Running on node 1, with variable slot size:
 hash slots	ops/sec
    2            43292.2
    4            81829.2
    8           156903.4
   16           297063.6
   32           554229.4
   64           962158.4
  128          1615859.6
  256          2106941.4
  512          2269494.8
 1024          2328782.6
 2048          2342981.6
 4096          2337705.2
 8192          2334141.4
16384          2334237.6
32768          2339262.2
65536          2438800.4

Sebastian

  reply	other threads:[~2024-10-31 17:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-28 12:13 [RFC v2 PATCH 0/4] futex: Add support task local hash maps Sebastian Andrzej Siewior
2024-10-28 12:13 ` [RFC PATCH v2 1/4] futex: Create helper function to initialize a hash slot Sebastian Andrzej Siewior
2024-10-28 12:13 ` [RFC PATCH v2 2/4] futex: Add basic infrastructure for local task local hash Sebastian Andrzej Siewior
2024-10-28 12:13 ` [RFC PATCH v2 3/4] futex: Use the task local hashmap Sebastian Andrzej Siewior
2024-10-28 12:13 ` [RFC PATCH v2 4/4] futex: Allow automatic allocation of process wide futex hash Sebastian Andrzej Siewior
2024-10-28 17:50 ` [RFC v2 PATCH 0/4] futex: Add support task local hash maps Sebastian Andrzej Siewior
2024-10-29 11:10 ` Juri Lelli
2024-10-29 15:06   ` Sebastian Andrzej Siewior
2024-10-31 15:56 ` Sebastian Andrzej Siewior
2024-10-31 17:47   ` Sebastian Andrzej Siewior [this message]
2024-11-01 11:08     ` Sebastian Andrzej Siewior
2024-10-31 20:18   ` Waiman Long
2024-10-31 20:28   ` Waiman Long

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