Add dump_at_max mode.
This allows to get a dump at the maximum observed value, rather than
at the time the dump is requested.
Test: profile system_server, get pprof 3f13aabe9d21eb2e1a28d281b2e9e6be.
Change-Id: Iff3075ed49bfbf992ac4e6f511100e1a7a67363c
Bug: 120177095
diff --git a/tools/heap_profile b/tools/heap_profile
index 5d76a4e..09a6911 100755
--- a/tools/heap_profile
+++ b/tools/heap_profile
@@ -153,6 +153,9 @@
parser.add_argument("--idle-allocations", help="Keep track of how many "
"bytes were unused since the last dump, per "
"callstack", action="store_true")
+ parser.add_argument("--dump-at-max", help="Dump the maximum memory usage"
+ "rather than at the time of the dump.",
+ action="store_true")
parser.add_argument("--simpleperf", action="store_true",
help="Get simpleperf profile of heapprofd. This is "
"only for heapprofd development.")
@@ -192,6 +195,8 @@
target_cfg += "no_startup: true\n"
if args.no_running:
target_cfg += "no_running: true\n"
+ if args.dump_at_max:
+ target_cfg += "dump_at_max: true\n"
if args.pid:
for pid in args.pid.split(','):
try:
