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author | Yao Qi <yao@codesourcery.com> | 2013-10-25 16:09:31 +0800 |
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committer | Yao Qi <yao@codesourcery.com> | 2013-11-24 14:33:31 +0800 |
commit | 22825df749cf79e849f6df35a6d3d0ae4e5a277e (patch) | |
tree | 653760cdfcac4eb65c96184b88ec50ad37c3919a /gdb | |
parent | 6dd315bae39eb29b75df2f202f087331733a39df (diff) | |
download | gdb-22825df749cf79e849f6df35a6d3d0ae4e5a277e.zip gdb-22825df749cf79e849f6df35a6d3d0ae4e5a277e.tar.gz gdb-22825df749cf79e849f6df35a6d3d0ae4e5a277e.tar.bz2 |
GDB perf test on single step
gdb/testsuite:
2013-11-24 Yao Qi <yao@codesourcery.com>
* gdb.perf/single-step.c: New.
* gdb.perf/single-step.exp: New.
* gdb.perf/single-step.py: New.
Diffstat (limited to 'gdb')
-rw-r--r-- | gdb/testsuite/ChangeLog | 6 | ||||
-rw-r--r-- | gdb/testsuite/gdb.perf/single-step.c | 35 | ||||
-rw-r--r-- | gdb/testsuite/gdb.perf/single-step.exp | 56 | ||||
-rw-r--r-- | gdb/testsuite/gdb.perf/single-step.py | 34 |
4 files changed, 131 insertions, 0 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index b3b7ea6..1c67062 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2013-11-24 Yao Qi <yao@codesourcery.com> + + * gdb.perf/single-step.c: New. + * gdb.perf/single-step.exp: New. + * gdb.perf/single-step.py: New. + 2013-11-23 Doug Evans <xdje42@gmail.com> * gdb.base/ena-dis-br.exp: Add missing quote to "step after continue diff --git a/gdb/testsuite/gdb.perf/single-step.c b/gdb/testsuite/gdb.perf/single-step.c new file mode 100644 index 0000000..2510c69 --- /dev/null +++ b/gdb/testsuite/gdb.perf/single-step.c @@ -0,0 +1,35 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright (C) 2013 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +volatile int flag = 1; + +int +main (void) +{ + int i = 0; + + while (flag) + { + double d; + float f; + + i++; + d = i * 3.14; + f = d / 0.618; + } + return 0; +} diff --git a/gdb/testsuite/gdb.perf/single-step.exp b/gdb/testsuite/gdb.perf/single-step.exp new file mode 100644 index 0000000..ffabbee --- /dev/null +++ b/gdb/testsuite/gdb.perf/single-step.exp @@ -0,0 +1,56 @@ +# Copyright (C) 2013 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# This test case is to test the speed of GDB when it is doing singe step. +# There is one parameter in this test: +# - SINGLE_STEP_COUNT is the number of single step GDB performs. + +load_lib perftest.exp + +if [skip_perf_tests] { + return 0 +} + +standard_testfile .c +set executable $testfile +set expfile $testfile.exp + +# make check-perf RUNTESTFLAGS='single-step.exp SINGLE_STEP_COUNT=300' +if ![info exists SINGLE_STEP_COUNT] { + set SINGLE_STEP_COUNT 10000 +} + +PerfTest::assemble { + global srcdir subdir srcfile binfile + + if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable {debug}] != "" } { + return -1 + } + return 0 +} { + global binfile + clean_restart $binfile + + if ![runto_main] { + fail "Can't run to main" + return -1 + } +} { + global SINGLE_STEP_COUNT + + gdb_test_no_output "python SingleStep\(${SINGLE_STEP_COUNT}\).run()" + # Terminate the loop. + gdb_test "set variable flag = 0" +} diff --git a/gdb/testsuite/gdb.perf/single-step.py b/gdb/testsuite/gdb.perf/single-step.py new file mode 100644 index 0000000..5e55d0d --- /dev/null +++ b/gdb/testsuite/gdb.perf/single-step.py @@ -0,0 +1,34 @@ +# Copyright (C) 2013 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +from perftest import perftest + +class SingleStep (perftest.TestCaseWithBasicMeasurements): + def __init__(self, step): + super (SingleStep, self).__init__ ("single-step") + self.step = step + + def warm_up(self): + for _ in range(0, self.step): + gdb.execute("stepi", False, True) + + def _run(self, r): + for _ in range(0, r): + gdb.execute("stepi", False, True) + + def execute_test(self): + for i in range(1, 5): + func = lambda: self._run(i * self.step) + self.measure.measure(func, i * self.step) |