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authorRussell King <rmk+kernel@arm.linux.org.uk>2009-10-12 14:38:08 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-10-12 14:38:08 +0100
commitedc72786d208e77db94f84dcb0d166c0d23d82f7 (patch)
tree6fd32770f9cb2f1a888775514294d60aecba5245 /tools/perf/design.txt
parent6a5e293f1b34920c69a932ce37b4a4714a428dc7 (diff)
parent4367216a099b4df3fa2c4f2b086cda1a1e9afc4e (diff)
Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
Diffstat (limited to 'tools/perf/design.txt')
-rw-r--r--tools/perf/design.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index f1946d107b1..fdd42a824c9 100644
--- a/tools/perf/design.txt
+++ b/tools/perf/design.txt
@@ -455,3 +455,6 @@ will need at least this:
If your architecture does have hardware capabilities, you can override the
weak stub hw_perf_event_init() to register hardware counters.
+
+Architectures that have d-cache aliassing issues, such as Sparc and ARM,
+should select PERF_USE_VMALLOC in order to avoid these for perf mmap().