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perf-tool: Add --wrap to wrap the gnome-shell call

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This allows neat tricks like first arranging the script `fakegdb`:

```sh

function ignore_gdb_arg() {
    if [[ "$1" == "--quiet" ]] || [[ "$1" == "--args" ]]; then
	    return 1
    else
	    return 0
    fi
}

ignore_gdb_arg "$1" || shift
ignore_gdb_arg "$1" || shift

echo exec "$@"
```

then running

```sh
meson test -C build -v perf-basic --test-args '--wrap "gdb --args"' --gdb --gdb-path `which fakegdb`
```

To make it possible to run the perf test case with gdb running the
actual gnome-shell.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1349>
This commit is contained in:
Jonas Ådahl 2022-09-03 22:48:20 +02:00
parent 4c6bc1ed00
commit a13a2dca66
1 changed files with 11 additions and 6 deletions
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17
src/gnome-shell-perf-tool.in
View File

@ -24,7 +24,7 @@ def show_version(option, opt_str, value, parser):
print("GNOME Shell Performance Test @VERSION@")
sys.exit()
def start_shell(perf_output=None):
def start_shell(wrap=None, perf_output=None):
# Set up environment
env = dict(os.environ)
env['SHELL_PERF_MODULE'] = options.perf
@ -41,6 +41,8 @@ def start_shell(perf_output=None):
self_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
args = []
if wrap:
args += wrap.split(' ')
args.append(os.path.join(self_dir, 'gnome-shell'))
if options.replace:
@ -61,15 +63,16 @@ def start_shell(perf_output=None):
elif options.x11:
args.append('--x11')
print("args: {}".format(args))
return subprocess.Popen(args, env=env)
def run_shell(perf_output=None):
def run_shell(wrap=None, perf_output=None):
# we do no additional supervision of gnome-shell,
# beyond that of wait
# in particular, we don't kill the shell upon
# receiving a KeyboardInterrupt, as we expect to be
# in the same process group
shell = start_shell(perf_output=perf_output)
shell = start_shell(wrap=wrap, perf_output=perf_output)
shell.wait()
return shell.returncode == 0
@ -166,7 +169,7 @@ def gnome_hwtest_log(*args):
command.extend(args)
subprocess.check_call(command)
def run_performance_test():
def run_performance_test(wrap=None):
iters = options.perf_iters
if options.perf_warmup:
iters += 1
@ -183,7 +186,7 @@ def run_performance_test():
# Run the performance test and collect the output as JSON
normal_exit = False
try:
normal_exit = run_shell(perf_output=output_file)
normal_exit = run_shell(wrap=wrap, perf_output=output_file)
except:
raise
finally:
@ -298,6 +301,8 @@ parser.add_argument("--hwtest", action="store_true",
parser.add_argument("--version", action="version",
version="GNOME Shell Performance Test @VERSION@")
parser.add_argument("--wrap")
parser.add_argument("-r", "--replace", action="store_true",
help="Replace the running window manager")
parser.add_argument("-w", "--wayland", action="store_true",
@ -323,7 +328,7 @@ if options.extra_filter is None:
if options.perf == 'hwtest':
options.extra_filter.append('Gedit')
normal_exit = run_performance_test()
normal_exit = run_performance_test(wrap=options.wrap)
if normal_exit:
if not options.hwtest and options.replace:
restore_shell()