From 20a72ca2d491d6efa720828becb783c20e4508b5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Tue, 28 Apr 2015 10:21:02 +0200 Subject: kernel application: Start code server first When the code server has started, it will read the .beam files for all loaded modules to see whether they contain native code that should be loaded. To make that as fast as possible when we have no native code, start the code server as early as possible to minimize the number .beam files that must be read from disk. The code server does not use the 'file' module, so it is OK to start the code server before starting the file_server process. On my computer, the time for checking the loaded modules for native code is reduced from roughly 2 ms to 1.5 ms. --- lib/kernel/src/kernel.erl | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'lib/kernel') diff --git a/lib/kernel/src/kernel.erl b/lib/kernel/src/kernel.erl index ecdb32424a..cc5683ba06 100644 --- a/lib/kernel/src/kernel.erl +++ b/lib/kernel/src/kernel.erl @@ -117,7 +117,7 @@ init([]) -> [{local, kernel_safe_sup}, ?MODULE, safe]}, permanent, infinity, supervisor, [?MODULE]}, {ok, {SupFlags, - [File, Code, StdError, User, + [Code, File, StdError, User, Config, SafeSupervisor]}}; _ -> Rpc = {rex, {rpc, start_link, []}, @@ -139,8 +139,8 @@ init([]) -> [{local, kernel_safe_sup}, ?MODULE, safe]}, permanent, infinity, supervisor, [?MODULE]}, {ok, {SupFlags, - [Rpc, Global, InetDb | DistAC] ++ - [NetSup, Glo_grp, File, Code, + [Code, Rpc, Global, InetDb | DistAC] ++ + [NetSup, Glo_grp, File, StdError, User, Config, SafeSupervisor] ++ Timer}} end; init(safe) -> -- cgit v1.2.3