From: Ard Biesheuvel <ardb@kernel.org>
To: linux-crypto@vger.kernel.org
Cc: herbert@gondor.apana.org.au, Ard Biesheuvel <ardb@kernel.org>,
Douglas Anderson <dianders@chromium.org>,
David Laight <David.Laight@aculab.com>
Subject: [PATCH v2 0/2] crypto: xor - defer and optimize boot time benchmark
Date: Sat, 26 Sep 2020 12:26:49 +0200 [thread overview]
Message-ID: <20200926102651.31598-1-ardb@kernel.org> (raw)
Doug reports [0] that the XOR boot time benchmark takes more time than
necessary, and runs at a time when there is little room for other
boot time tasks to run concurrently.
Let's fix this by #1 deferring the benchmark, and #2 uses a faster
implementation.
Changes since v2:
- incorporate Doug's review feedback re coarse clocks and the use of pr_info
- add Doug's ack to #1
[0] https://lore.kernel.org/linux-arm-kernel/20200921172603.1.Id9450c1d3deef17718bd5368580a3c44895209ee@changeid/
Cc: Douglas Anderson <dianders@chromium.org>
Cc: David Laight <David.Laight@aculab.com>
Ard Biesheuvel (2):
crypto: xor - defer load time benchmark to a later time
crypto: xor - use ktime for template benchmarking
crypto/xor.c | 67 +++++++++++++-------
1 file changed, 44 insertions(+), 23 deletions(-)
--
2.17.1
next reply other threads:[~2020-09-26 10:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-26 10:26 Ard Biesheuvel [this message]
2020-09-26 10:26 ` [PATCH v2 1/2] crypto: xor - defer load time benchmark to a later time Ard Biesheuvel
2020-09-26 10:26 ` [PATCH v2 2/2] crypto: xor - use ktime for template benchmarking Ard Biesheuvel
2020-09-28 23:47 ` Doug Anderson
2020-10-02 11:55 ` [PATCH v2 0/2] crypto: xor - defer and optimize boot time benchmark Herbert Xu
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