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[coreutils] [PATCH] maint: use slightly more efficient process in README
From: |
Jim Meyering |
Subject: |
[coreutils] [PATCH] maint: use slightly more efficient process in README-release |
Date: |
Wed, 19 Jan 2011 08:36:44 +0100 |
This makes the release process more efficient on a multi-core system:
>From 948828b208e4cd59ceb903afbb46f55c09d51e18 Mon Sep 17 00:00:00 2001
From: Jim Meyering <address@hidden>
Date: Tue, 4 Jan 2011 12:47:24 +0100
Subject: [PATCH] maint: use slightly more efficient process in README-release
* README-release: Run cheaper root-only tests first.
Use half of processing units (not just 1) for the expensive tests.
---
README-release | 16 +++++++++-------
1 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/README-release b/README-release
index b2bd34c..729ab89 100644
--- a/README-release
+++ b/README-release
@@ -29,13 +29,15 @@ FIXME: enable excluded programs like arch? to get their
manual pages?
Run the following on at least one SELinux-enabled (enforcing) and
one non-SELinux system:
- make distcheck
- make -j1 check RUN_VERY_EXPENSIVE_TESTS=yes RUN_EXPENSIVE_TESTS=yes
- sudo env PATH="$PATH" NON_ROOT_USERNAME=$USER make -k check-root
-
- Note the -j1 above. If you use -jN, for larger N, some of the expensive
- tests are likely to interfere with concurrent performance-measuring or
- timing-sensitive tests, resulting in spurious failures.
+ n=$(( ($(nproc) + 1) / 2 ))
+ sudo env PATH="$PATH" NON_ROOT_USERNAME=$USER make -k -j$(nproc)
check-root\
+ && make distcheck \
+ && make -j$n check RUN_VERY_EXPENSIVE_TESTS=yes RUN_EXPENSIVE_TESTS=yes
+
+ Note that the use of -j$n tells make to use approximately half of the
+ available processing units. If you use -jN, for larger N, some of the
+ expensive tests are likely to interfere with concurrent performance-measuring
+ or timing-sensitive tests, resulting in spurious failures.
If "make distcheck" doesn't run "make syntax-check" for you, then run
it manually:
--
1.7.3.5
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