From: Keith Busch <kbusch@meta.com>
To: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<willy@infradead.org>, <hch@lst.de>, <tonyb@cybernetics.com>,
<akpm@linux-foundation.org>
Cc: <kernel-team@meta.com>, Keith Busch <kbusch@kernel.org>
Subject: [PATCHv4 00/12] dmapool enhancements
Date: Thu, 26 Jan 2023 13:51:13 -0800 [thread overview]
Message-ID: <20230126215125.4069751-1-kbusch@meta.com> (raw)
From: Keith Busch <kbusch@kernel.org>
Time spent in dma_pool alloc/free increases linearly with the number of
pages backing the pool. We can reduce this to constant time with minor
changes to how free pages are tracked.
Changes since v4:
Added received reviews
Applied comments from Christoph:
Combined all debug code in one #ifdef block
Fixed some whitespace
Keith Busch (8):
dmapool: add alloc/free performance test
dmapool: move debug code to own functions
dmapool: rearrange page alloc failure handling
dmapool: consolidate page initialization
dmapool: simplify freeing
dmapool: don't memset on free twice
dmapool: link blocks across pages
dmapool: create/destroy cleanup
Tony Battersby (4):
dmapool: remove checks for dev == NULL
dmapool: use sysfs_emit() instead of scnprintf()
dmapool: cleanup integer types
dmapool: speedup DMAPOOL_DEBUG with init_on_alloc
mm/Kconfig | 9 ++
mm/Makefile | 1 +
mm/dmapool.c | 402 ++++++++++++++++++++++------------------------
mm/dmapool_test.c | 147 +++++++++++++++++
4 files changed, 350 insertions(+), 209 deletions(-)
create mode 100644 mm/dmapool_test.c
--
2.30.2
next reply other threads:[~2023-01-26 21:51 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 21:51 Keith Busch [this message]
2023-01-26 21:51 ` [PATCHv4 01/12] dmapool: add alloc/free performance test Keith Busch
2023-01-26 21:51 ` [PATCHv4 02/12] dmapool: remove checks for dev == NULL Keith Busch
2023-01-26 21:51 ` [PATCHv4 03/12] dmapool: use sysfs_emit() instead of scnprintf() Keith Busch
2023-01-26 21:51 ` [PATCHv4 04/12] dmapool: cleanup integer types Keith Busch
2023-01-26 21:51 ` [PATCHv4 05/12] dmapool: speedup DMAPOOL_DEBUG with init_on_alloc Keith Busch
2023-01-26 21:51 ` [PATCHv4 06/12] dmapool: move debug code to own functions Keith Busch
2023-01-26 21:51 ` [PATCHv4 07/12] dmapool: rearrange page alloc failure handling Keith Busch
2023-01-26 21:51 ` [PATCHv4 08/12] dmapool: consolidate page initialization Keith Busch
2023-01-26 21:51 ` [PATCHv4 09/12] dmapool: simplify freeing Keith Busch
2023-01-26 21:51 ` [PATCHv4 10/12] dmapool: don't memset on free twice Keith Busch
2023-01-26 21:51 ` [PATCHv4 11/12] dmapool: link blocks across pages Keith Busch
2023-02-01 17:42 ` Bryan O'Donoghue
2023-02-01 17:43 ` Keith Busch
2023-02-02 0:38 ` Bryan O'Donoghue
2023-02-27 0:54 ` Guenter Roeck
2023-02-28 1:01 ` Keith Busch
2023-02-28 2:18 ` Guenter Roeck
2023-01-26 21:51 ` [PATCHv4 12/12] dmapool: create/destroy cleanup Keith Busch
2023-01-26 22:22 ` [PATCHv4 00/12] dmapool enhancements Andrew Morton
2023-01-27 0:27 ` Keith Busch
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