diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/rabbit.erl | 47 |
1 files changed, 18 insertions, 29 deletions
diff --git a/src/rabbit.erl b/src/rabbit.erl index 77bd451a88..fda1fbdc1d 100644 --- a/src/rabbit.erl +++ b/src/rabbit.erl @@ -492,9 +492,7 @@ start(normal, []) -> true = register(rabbit, self()), print_banner(), log_banner(), - warn_if_kernel_poll_is_disabled(), - warn_if_few_async_threads(), - warn_if_nagles_algorithm_is_enabled(), + warn_if_kernel_config_dubious(), run_boot_steps(), {ok, SupPid}; Error -> @@ -820,36 +818,27 @@ log_banner() -> end || S <- Settings]), error_logger:info_msg("~s", [Banner]). -warn_if_kernel_poll_is_disabled() -> +warn_if_kernel_config_dubious() -> case erlang:system_info(kernel_poll) of - true -> - ok; - false -> - error_logger:warning_msg("Kernel poll (epoll, kqueue, etc) " - "is disabled. Throughput and " - "CPU utilization may worsen.~n") - end. - -warn_if_few_async_threads() -> + true -> ok; + false -> error_logger:warning_msg( + "Kernel poll (epoll, kqueue, etc) is disabled. Throughput " + "and CPU utilization may worsen.~n") + end, AsyncThreads = erlang:system_info(thread_pool_size), - if AsyncThreads < ?ASYNC_THREADS_WARNING_THRESHOLD -> - error_logger:warning_msg( - "Erlang VM is running with ~s I/O threads, " - "file I/O performance may worsen ~n", - [integer_to_list(AsyncThreads)]); - true -> - ok - end. - -warn_if_nagles_algorithm_is_enabled() -> + case AsyncThreads < ?ASYNC_THREADS_WARNING_THRESHOLD of + true -> error_logger:warning_msg( + "Erlang VM is running with ~s I/O threads, " + "file I/O performance may worsen ~n", + [integer_to_list(AsyncThreads)]); + false -> ok + end, IDCOpts = application:get_env(kernel, inet_default_connect_options, []), - Msg = "Nagle's algorithm is enabled for sockets, " - "network I/O latency will be higher~n", case proplists:get_value(nodelay, IDCOpts, false) of - false -> - error_logger:warning_msg(Msg); - true -> - ok + false -> error_logger:warning_msg( + "Nagle's algorithm is enabled for sockets, " + "network I/O latency will be higher~n"); + true -> ok end. home_dir() -> |