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Diffstat (limited to 'winsup/cygserver/README')
| -rw-r--r-- | winsup/cygserver/README | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/winsup/cygserver/README b/winsup/cygserver/README index 209953147..39dcd9f98 100644 --- a/winsup/cygserver/README +++ b/winsup/cygserver/README @@ -51,6 +51,27 @@ Cygserver command line options: under heavy load conditions or on slow machines. Configuration file option: kern.srv.request_threads + -p, --process-cache <num> + + Number of processes which can connect concurrently to cygserver. + Default is 62. Each process connected to cygserver is a synchronization + object which has to be maintained. The data structure to maintain these + processes is the so-called "process cache". In theory, an arbitrary + number of processes could connect to cygserver, but due to the need to + synchronize, the higher the number of connected processes, the more + synchronization overhead exists. By using this option, you can set an + upper limit to the synchronization effort. If more than 62 processes + try to connect to cygserver concurrently, two additional synchronization + threads are necessary, and one for each further 62 concurrent + processes. So, useful values for the --process-cache option are 62, 124, + 186, 248, 310. 310 is the maximum value. + Configuration file option: kern.srv.process_cache_size + + NOTE: The number of child processes of a single parent process is limited + to 256. So in case of taking advantage of a process cache size beyond 256, + keep in mind that not all of these processes can be child processes of one + single parent process. + -d, --debug Log debug messages to stderr. These will clutter your stderr output with |