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| author |   Rob Herring <rob.herring@calxeda.com> | 2011-03-04 23:51:59 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2011-03-09 00:18:48 +0000 |
| commit | bf9dd36091695f1138a98b6ae85d565e60635545 (patch) | |
| tree | 9bdf84901207c037d9d69c566d3a55dd2d5656ec /tools/perf/scripts/python/bin | |
| parent | ARM: 6778/1: compressed/head.S: make LDFLAGS_vmlinux into a recursively expanded variable (diff) | |
| download | linux-dev-bf9dd36091695f1138a98b6ae85d565e60635545.tar.xz linux-dev-bf9dd36091695f1138a98b6ae85d565e60635545.zip | |
ARM: 6786/1: enable CONFIG_KTIME_SCALAR
Use straight 64-bit values as 64-bit operations are fairly efficient on ARM.
Comparing the asm output with and without KTIME_SCALAR, using 64-bit math
generates clearly better code.
Comparing kernel/hrtimer.c .text size, it goes from 0x1414 to 0x119c with
this change.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions