diff options
Diffstat (limited to 'lib/os_mon/src/memsup.erl')
| -rw-r--r-- | lib/os_mon/src/memsup.erl | 100 |
1 files changed, 51 insertions, 49 deletions
diff --git a/lib/os_mon/src/memsup.erl b/lib/os_mon/src/memsup.erl index a1b8591c8c..4729d090f8 100644 --- a/lib/os_mon/src/memsup.erl +++ b/lib/os_mon/src/memsup.erl @@ -1,18 +1,19 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2012. All Rights Reserved. +%% Copyright Ericsson AB 1996-2016. All Rights Reserved. %% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. %% %% %CopyrightEnd% %% @@ -407,18 +408,18 @@ handle_info({collected_sys, {Alloc,Total}}, State) -> %% Last, if this was a periodic check, start a timer for the next %% one. New timeout = interval-time spent collecting, - case lists:member(reg, State#state.pending) of - true -> - Time = case State2#state.timeout - TimeSpent of - MS when MS<0 -> - 0; - MS -> - MS - end, - erlang:send_after(Time, self(), time_to_collect); - false -> - ignore - end, + _ = case lists:member(reg, State#state.pending) of + true -> + Time = case State2#state.timeout - TimeSpent of + MS when MS<0 -> + 0; + MS -> + MS + end, + erlang:send_after(Time, self(), time_to_collect); + false -> + ignore + end, {noreply, State2#state{wd_timer=undefined, pending=[]}}; handle_info({'EXIT', Pid, normal}, State) when is_pid(Pid) -> %% Temporary pid terminating when job is done @@ -447,17 +448,17 @@ handle_info(reg_collection_timeout, State) -> %% If it is a periodic check which has timed out, start a timer for %% the next one %% New timeout = interval-helper timeout - case lists:member(reg, State#state.pending) of - true -> - Time = - case State#state.timeout-State#state.helper_timeout of - MS when MS<0 -> 0; - MS -> MS - end, - erlang:send_after(Time, self(), time_to_collect); - false -> - ignore - end, + _ = case lists:member(reg, State#state.pending) of + true -> + Time = + case State#state.timeout-State#state.helper_timeout of + MS when MS<0 -> 0; + MS -> MS + end, + erlang:send_after(Time, self(), time_to_collect); + false -> + ignore + end, {noreply, State#state{wd_timer=undefined, pending=[]}}; handle_info({'EXIT', Pid, cancel}, State) when is_pid(Pid) -> %% Temporary pid terminating as ordered @@ -468,7 +469,7 @@ handle_info({collected_ext_sys, SysMemUsage}, State) -> %% Cancel watchdog timer (and as a security mearure, %% also flush any ext_collection_timeout message) - erlang:cancel_timer(State#state.ext_wd_timer), + ok = erlang:cancel_timer(State#state.ext_wd_timer, [{async,true}]), flush(ext_collection_timeout), %% Send the reply to all waiting clients, preserving time order @@ -534,7 +535,7 @@ code_change(Vsn, PrevState, "1.8") -> undefined -> ignore; TimerRef1 -> - erlang:cancel_timer(TimerRef1), + ok = erlang:cancel_timer(TimerRef1, [{async,true}]), SysOnly = PrevState#state.sys_only, MemUsage = dummy_reply(get_memory_data, SysOnly), SysMemUsage1 = dummy_reply(get_system_memory_data), @@ -544,7 +545,7 @@ code_change(Vsn, PrevState, "1.8") -> undefined -> ignore; TimerRef2 -> - erlang:cancel_timer(TimerRef2), + ok = erlang:cancel_timer(TimerRef2, [{async,true}]), SysMemUsage2 = dummy_reply(get_system_memory_data), reply(PrevState#state.pending, undef, SysMemUsage2) end, @@ -588,7 +589,7 @@ code_change(Vsn, PrevState, "1.8") -> undefined -> ignore; TimerRef1 -> - erlang:cancel_timer(TimerRef1), + ok = erlang:cancel_timer(TimerRef1, [{async,true}]), MemUsage = dummy_reply(get_memory_data, SysOnly), Pending2 = lists:map(fun(From) -> {reg,From} end, Pending), @@ -598,7 +599,7 @@ code_change(Vsn, PrevState, "1.8") -> undefined -> ignore; TimerRef2 -> - erlang:cancel_timer(TimerRef2), + ok = erlang:cancel_timer(TimerRef2, [{async,true}]), SysMemUsage = dummy_reply(get_system_memory_data), ExtPending2 = lists:map(fun(From) -> {ext,From} end, ExtPending), @@ -698,6 +699,8 @@ get_os_wordsize_with_uname() -> case String of "x86_64" -> 64; "sparc64" -> 64; + "amd64" -> 64; + "ppc64" -> 64; _ -> 32 end. @@ -721,20 +724,19 @@ reply(Pending, MemUsage, SysMemUsage) -> %% get_memory_usage(OS) -> {Alloc, Total} %% Darwin: -%% Uses vm_stat command. This appears to lie about the page size in -%% Mac OS X 10.2.2 - the pages given are based on 4000 bytes, but -%% the vm_stat command tells us that it is 4096... +%% Uses vm_stat command. get_memory_usage({unix,darwin}) -> Str1 = os:cmd("/usr/bin/vm_stat"), - - {[Free], Str2} = fread_value("Pages free:~d.", Str1), - {[Active], Str3} = fread_value("Pages active:~d.", Str2), - {[Inactive], Str4} = fread_value("Pages inactive:~d.", Str3), - {[_], Str5} = fread_value("Pages speculative:~d.", Str4), + PageSize = 4096, + + {[Free], Str2} = fread_value("Pages free:~d.", Str1), + {[Active], Str3} = fread_value("Pages active:~d.", Str2), + {[Inactive], Str4} = fread_value("Pages inactive:~d.", Str3), + {[Speculative], Str5} = fread_value("Pages speculative:~d.", Str4), {[Wired], _} = fread_value("Pages wired down:~d.", Str5), - NMemUsed = (Wired + Active + Inactive) * 4000, - NMemTotal = NMemUsed + Free * 4000, + NMemUsed = (Wired + Active + Inactive) * PageSize, + NMemTotal = NMemUsed + (Free + Speculative) * PageSize, {NMemUsed,NMemTotal}; %% FreeBSD: Look in /usr/include/sys/vmmeter.h for the format of struct |