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Mention perf test in testsuite/README

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gdb/testsuite:

2013-11-06  Yao Qi  <yao@codesourcery.com>

	* README: Mention performance tests.
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Yao Qi
2013-10-16 14:50:16 +08:00
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gdb/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2013-11-06 Yao Qi <yao@codesourcery.com>
* README: Mention performance tests.
2013-11-06 Yao Qi <yao@codesourcery.com>
* lib/perftest.exp: New.

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gdb/testsuite/README
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@ -25,6 +25,29 @@ The second is to cd to the testsuite directory and invoke the DejaGnu
(The `site.exp' file contains a handful of useful variables like host
and target triplets, and pathnames.)
Running the Performance Tests
*****************************
GDB Testsuite includes performance test cases, which are not run together
with other test cases, because performance test cases are slow and need
a quiet system. There are two ways to run the performance test cases.
The first is to do `make check-perf' in the main build directory:
make check-perf RUNTESTFLAGS="solib.exp SOLIB_COUNT=8"
The second is to cd to the testsuite directory and invoke the DejaGnu
`runtest' command directly.
cd testsuite
make site.exp
runtest GDB_PERFTEST_MODE=both GDB_PERFTEST_TIMEOUT=4000 --directory=gdb.perf solib.exp SOLIB_COUNT=8
Only "compile", "run" and "both" are valid to GDB_PERFTEST_MODE. They
stand for "compile tests only", "run tests only", and "compile and run
tests" respectively. "both" is the default. GDB_PERFTEST_TIMEOUT
specify the timeout, which is 3000 in default. The result of
performance test is appended in `testsuite/perftest.log'.
Testsuite Parameters
********************
@ -315,6 +338,10 @@ Tests that exercise a specific GDB subsystem in more depth. For
instance, gdb.disasm exercises various disassemblers, while
gdb.stabs tests pathways through the stabs symbol reader.
gdb.perf
GDB performance tests.
Writing Tests
*************