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-rw-r--r--tools/perf/Documentation/perf-bench.txt54
1 files changed, 19 insertions, 35 deletions
diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt
index ab632d9fbd7d..34750fc32714 100644
--- a/tools/perf/Documentation/perf-bench.txt
+++ b/tools/perf/Documentation/perf-bench.txt
@@ -82,7 +82,7 @@ Be multi thread instead of multi process
Specify number of groups
-l::
---loop=::
+--nr_loops=::
Specify number of loops
Example of *messaging*
@@ -139,64 +139,48 @@ Suite for evaluating performance of simple memory copy in various ways.
Options of *memcpy*
^^^^^^^^^^^^^^^^^^^
-l::
---length::
-Specify length of memory to copy (default: 1MB).
+--size::
+Specify size of memory to copy (default: 1MB).
Available units are B, KB, MB, GB and TB (case insensitive).
--r::
---routine::
-Specify routine to copy (default: default).
-Available routines are depend on the architecture.
+-f::
+--function::
+Specify function to copy (default: default).
+Available functions are depend on the architecture.
On x86-64, x86-64-unrolled, x86-64-movsq and x86-64-movsb are supported.
--i::
---iterations::
+-l::
+--nr_loops::
Repeat memcpy invocation this number of times.
-c::
---cycle::
+--cycles::
Use perf's cpu-cycles event instead of gettimeofday syscall.
--o::
---only-prefault::
-Show only the result with page faults before memcpy.
-
--n::
---no-prefault::
-Show only the result without page faults before memcpy.
-
*memset*::
Suite for evaluating performance of simple memory set in various ways.
Options of *memset*
^^^^^^^^^^^^^^^^^^^
-l::
---length::
-Specify length of memory to set (default: 1MB).
+--size::
+Specify size of memory to set (default: 1MB).
Available units are B, KB, MB, GB and TB (case insensitive).
--r::
---routine::
-Specify routine to set (default: default).
-Available routines are depend on the architecture.
+-f::
+--function::
+Specify function to set (default: default).
+Available functions are depend on the architecture.
On x86-64, x86-64-unrolled, x86-64-stosq and x86-64-stosb are supported.
--i::
---iterations::
+-l::
+--nr_loops::
Repeat memset invocation this number of times.
-c::
---cycle::
+--cycles::
Use perf's cpu-cycles event instead of gettimeofday syscall.
--o::
---only-prefault::
-Show only the result with page faults before memset.
-
--n::
---no-prefault::
-Show only the result without page faults before memset.
-
SUITES FOR 'numa'
~~~~~~~~~~~~~~~~~
*mem*::