From: git@jeffhostetler.com
To: git@vger.kernel.org
Cc: gitster@pobox.com, peff@peff.net,
Jeff Hostetler <jeffhost@microsoft.com>
Subject: [PATCH v10 0/3] read-cache: speed up add_index_entry
Date: Fri, 14 Apr 2017 19:12:27 +0000 [thread overview]
Message-ID: <20170414191230.52825-1-git@jeffhostetler.com> (raw)
From: Jeff Hostetler <jeffhost@microsoft.com>
Version 10 addresses mailing list comments on coding style in
read-cache.c and in p0006. I've also adjusted the speed-up
algorithm and more thoroughly documented the cases in the code.
We skip the binary searches whenever we can prove that the new
entry (and every sub-directory prefix of the entry) clearly
FOLLOWS the last entry in the index. Otherwise, we fall through
to the existing search algorithm -- which handles stages and
CE_REMOVE entries.
Jeff Hostetler (3):
read-cache: add strcmp_offset function
p0006-read-tree-checkout: perf test to time read-tree
read-cache: speed up add_index_entry during checkout
Makefile | 1 +
cache.h | 1 +
read-cache.c | 138 ++++++++++++++++++++++++++++++++++++-
t/helper/.gitignore | 1 +
t/helper/test-strcmp-offset.c | 22 ++++++
t/perf/p0006-read-tree-checkout.sh | 67 ++++++++++++++++++
t/perf/repos/.gitignore | 1 +
t/perf/repos/many-files.sh | 110 +++++++++++++++++++++++++++++
t/t0065-strcmp-offset.sh | 21 ++++++
9 files changed, 360 insertions(+), 2 deletions(-)
create mode 100644 t/helper/test-strcmp-offset.c
create mode 100755 t/perf/p0006-read-tree-checkout.sh
create mode 100644 t/perf/repos/.gitignore
create mode 100755 t/perf/repos/many-files.sh
create mode 100755 t/t0065-strcmp-offset.sh
--
2.9.3
next reply other threads:[~2017-04-14 19:12 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-14 19:12 git [this message]
2017-04-14 19:12 ` [PATCH v10 1/3] read-cache: add strcmp_offset function git
2017-04-14 19:12 ` [PATCH v10 2/3] p0006-read-tree-checkout: perf test to time read-tree git
2017-04-14 19:12 ` [PATCH v10 3/3] read-cache: speed up add_index_entry during checkout git
2017-04-15 17:55 ` René Scharfe
2017-04-17 14:53 ` Jeff Hostetler
2017-04-18 16:19 ` Jeff Hostetler
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