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perf-tool: Spawn perf-tool-helper from gnome-shell

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On Wayland, the display server is the Wayland compositor, i.e.
`gnome-shell` itself.

As a result, we cannot spawn `gnome-shell-perf-helper` before
`gnome-shell` is started, as `gnome-shell-perf-helper` needs to connect
to the display server.

So, instead of spawning `gnome-shell-perf-helper` from the perf tool,
start it from `gnome-shell` itself.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/941
This commit is contained in:
Olivier Fourdan
2020-01-24 10:59:31 +01:00
committed by Florian Müllner
parent a750d04bdb
commit ee7e62c9c8
2 changed files with 34 additions and 70 deletions
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53
src/gnome-shell-perf-tool.in
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@ -24,52 +24,6 @@ def show_version(option, opt_str, value, parser):
print("GNOME Shell Performance Test @VERSION@")
sys.exit()
def wait_for_dbus_name(wait_name):
loop = GLib.MainLoop()
def on_name_appeared(connection, name, new_owner, *args):
if not (name == wait_name and new_owner != ''):
return
loop.quit()
return
watch_id = Gio.bus_watch_name(Gio.BusType.SESSION,
wait_name,
Gio.BusNameWatcherFlags.NONE,
on_name_appeared,
None)
def on_timeout():
print("\nFailed to start %s: timed out" % (wait_name,))
sys.exit(1)
GLib.timeout_add_seconds(7, on_timeout)
loop.run()
Gio.bus_unwatch_name(watch_id)
PERF_HELPER_NAME = "org.gnome.Shell.PerfHelper"
PERF_HELPER_IFACE = "org.gnome.Shell.PerfHelper"
PERF_HELPER_PATH = "/org/gnome/Shell/PerfHelper"
def start_perf_helper():
self_dir = os.path.dirname(os.path.abspath(sys.argv[0]))
perf_helper_path = "@libexecdir@/gnome-shell-perf-helper"
subprocess.Popen([perf_helper_path])
wait_for_dbus_name (PERF_HELPER_NAME)
def stop_perf_helper():
bus = Gio.bus_get_sync(Gio.BusType.SESSION, None)
proxy = Gio.DBusProxy.new_sync(bus,
Gio.DBusProxyFlags.NONE,
None,
PERF_HELPER_NAME,
PERF_HELPER_PATH,
PERF_HELPER_IFACE,
None)
proxy.Exit()
def start_shell(perf_output=None):
# Set up environment
env = dict(os.environ)
@ -204,8 +158,6 @@ def run_performance_test():
logs = []
metric_summaries = {}
start_perf_helper()
for i in range(0, iters):
# We create an empty temporary file that the shell will overwrite
# with the contents.
@ -217,14 +169,12 @@ def run_performance_test():
try:
normal_exit = run_shell(perf_output=output_file)
except:
stop_perf_helper()
raise
finally:
if not normal_exit:
os.remove(output_file)
if not normal_exit:
stop_perf_helper()
return False
try:
@ -232,7 +182,6 @@ def run_performance_test():
output = json.load(f)
f.close()
except:
stop_perf_helper()
raise
finally:
os.remove(output_file)
@ -260,8 +209,6 @@ def run_performance_test():
logs.append(output['log'])
stop_perf_helper()
if options.perf_output or options.perf_upload:
# Write a complete report, formatted as JSON. The Javascript/C code that
# generates the individual reports we are summarizing here is very careful