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| author | Lukas Larsson <[email protected]> | 2013-10-28 16:10:07 +0100 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2014-02-24 15:15:59 +0100 |
| commit | d932131754c2bfb2e0539b6419e3d09533fe84e8 (patch) | |
| tree | 1fdd160136501a0ab3d5a42d8305581cac3e1b95 /erts/configure.in | |
| parent | a3eba23b0caedcbd1d4cf181cb06b6f0d86f8bd4 (diff) | |
| download | otp-d932131754c2bfb2e0539b6419e3d09533fe84e8.tar.gz otp-d932131754c2bfb2e0539b6419e3d09533fe84e8.tar.bz2 otp-d932131754c2bfb2e0539b6419e3d09533fe84e8.zip | |
erts: configure number of write_concurrency locks
Make it possible to change the number of write_concurrency locks to use. This
is usefull to change when you for some reason want to use more/less locks
per write_concurrency ets table. eg. OSs with a limit on how many mutexes
can exist at once.
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in index 7ad0a6caf0..c964327ebc 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -426,6 +426,17 @@ AS_HELP_STRING([--enable-static-drivers], [comma seperated list of linked-in dri STATIC_DRIVERS=no) AC_SUBST(STATIC_DRIVERS) +AC_ARG_WITH(ets-write-concurrency-locks, + AS_HELP_STRING([--with-ets-write-concurrency-locks={8,16,32,64,128,256}], + [specify how many locks the write_concurrency option for ets should use.]) + AS_HELP_STRING([--without-ets-write-concurrency-locks], + [use the default number of write_concurrency locks (default)])) + +if test X"$with_ets_write_concurrency_locks" != X""; then + AC_DEFINE_UNQUOTED(ERTS_DB_HASH_LOCK_CNT,$with_ets_write_concurrency_locks, + [Define to override the default number of write_concurrency locks]) +fi + dnl ---------------------------------------------------------------------- dnl Checks for programs. dnl ---------------------------------------------------------------------- |