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| author | Björn Gustavsson <[email protected]> | 2017-02-03 13:27:09 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2017-02-03 13:31:24 +0100 |
| commit | 5f7f86be7bc7ec7a1c9b0042ff08254dca063d76 (patch) | |
| tree | d69acb9beded0e43b760222f90719f260029118b /lib/kernel/test/rpc_SUITE.erl | |
| parent | ea530357b27635278ae8a3260e735ea39df5c283 (diff) | |
| download | otp-5f7f86be7bc7ec7a1c9b0042ff08254dca063d76.tar.gz otp-5f7f86be7bc7ec7a1c9b0042ff08254dca063d76.tar.bz2 otp-5f7f86be7bc7ec7a1c9b0042ff08254dca063d76.zip | |
Store messages for 'rex' and 'error_logger' off heap
Performance for processes that receive huge amounts of
messages can be increased by storing the incoming messages
outside the heap (that avoids copying the message in a
garbage collection).
Two OTP processes that are known to receive many messages
are 'rex' (used by 'rpc') and 'error_logger'.
Diffstat (limited to 'lib/kernel/test/rpc_SUITE.erl')
| -rw-r--r-- | lib/kernel/test/rpc_SUITE.erl | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/kernel/test/rpc_SUITE.erl b/lib/kernel/test/rpc_SUITE.erl index 1c72ddc87f..d76c4097d8 100644 --- a/lib/kernel/test/rpc_SUITE.erl +++ b/lib/kernel/test/rpc_SUITE.erl @@ -21,7 +21,8 @@ -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2]). --export([call/1, block_call/1, multicall/1, multicall_timeout/1, +-export([off_heap/1, + call/1, block_call/1, multicall/1, multicall_timeout/1, multicall_dies/1, multicall_node_dies/1, called_dies/1, called_node_dies/1, called_throws/1, call_benchmark/1, async_call/1]). @@ -35,7 +36,7 @@ suite() -> {timetrap,{minutes,2}}]. all() -> - [call, block_call, multicall, multicall_timeout, + [off_heap, call, block_call, multicall, multicall_timeout, multicall_dies, multicall_node_dies, called_dies, called_node_dies, called_throws, call_benchmark, async_call]. @@ -55,6 +56,13 @@ init_per_group(_GroupName, Config) -> end_per_group(_GroupName, Config) -> Config. +off_heap(_Config) -> + %% The rex server process may receive a huge amount of + %% messages. Make sure that they are stored off heap to + %% avoid exessive GCs. + MQD = message_queue_data, + {MQD,off_heap} = process_info(whereis(rex), MQD), + ok. %% Test different rpc calls. |