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authorJohn Högberg <[email protected]>2018-02-13 09:47:59 +0100
committerJohn Högberg <[email protected]>2018-02-13 09:47:59 +0100
commit9d660e81152fd7640e12551b09eebae1ebb87c98 (patch)
tree7b3506124f3144eefe5c59885be8c7bb18df436f /lib
parent78baf69b8b37b543f419fcd5a606cba2c60abea0 (diff)
parentdfa4d62c263cd3f11338aba891179b08704d9287 (diff)
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Merge branch 'john/tools/fix-lcnt-server-crash/PR-1711/OTP-14912' into maint
Diffstat (limited to 'lib')
-rw-r--r--lib/tools/doc/src/lcnt.xml2
-rw-r--r--lib/tools/src/lcnt.erl2
-rw-r--r--lib/tools/test/lcnt_SUITE.erl7
3 files changed, 8 insertions, 3 deletions
diff --git a/lib/tools/doc/src/lcnt.xml b/lib/tools/doc/src/lcnt.xml
index 5bdfc60448..0c24375b91 100644
--- a/lib/tools/doc/src/lcnt.xml
+++ b/lib/tools/doc/src/lcnt.xml
@@ -371,7 +371,7 @@
<v>Serial = integer()</v>
</type>
<desc>
- <p>Creates a process id with creation 0. Example:</p>
+ <p>Creates a process id with creation 0.</p>
</desc>
</func>
diff --git a/lib/tools/src/lcnt.erl b/lib/tools/src/lcnt.erl
index 20b031a7ad..d0152a4915 100644
--- a/lib/tools/src/lcnt.erl
+++ b/lib/tools/src/lcnt.erl
@@ -944,7 +944,7 @@ print_state_information(#state{locks = Locks} = State) ->
print(kv("#tries", s(Stats#stats.tries))),
print(kv("#colls", s(Stats#stats.colls))),
print(kv("wait time", s(Stats#stats.time) ++ " us" ++ " ( " ++ s(Stats#stats.time/1000000) ++ " s)")),
- print(kv("percent of duration", s(Stats#stats.time/State#state.duration*100) ++ " %")),
+ print(kv("percent of duration", s(percent(Stats#stats.time, State#state.duration)) ++ " %")),
ok.
diff --git a/lib/tools/test/lcnt_SUITE.erl b/lib/tools/test/lcnt_SUITE.erl
index 4a92abb5c8..a79572a742 100644
--- a/lib/tools/test/lcnt_SUITE.erl
+++ b/lib/tools/test/lcnt_SUITE.erl
@@ -31,6 +31,7 @@
t_locations/1,
t_swap_keys/1,
t_implicit_start/1,
+ t_crash_before_collect/1,
smoke_lcnt/1]).
init_per_testcase(_Case, Config) ->
@@ -46,7 +47,7 @@ suite() ->
all() ->
[t_load, t_conflicts, t_locations, t_swap_keys, t_implicit_start,
- smoke_lcnt].
+ t_crash_before_collect, smoke_lcnt].
%%----------------------------------------------------------------------
%% Tests
@@ -155,6 +156,10 @@ t_swap_keys_file([File|Files]) ->
t_implicit_start(Config) when is_list(Config) ->
ok = lcnt:conflicts().
+t_crash_before_collect(Config) when is_list(Config) ->
+ {ok, _} = lcnt:start(),
+ ok = lcnt:information().
+
%% Simple smoke test of actual lock-counting, if running on
%% a run-time with lock-counting enabled.
smoke_lcnt(Config) ->