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| author | Koichi Sasada <ko1@atdot.net> | 2023-10-12 23:35:12 +0900 |
|---|---|---|
| committer | Koichi Sasada <ko1@atdot.net> | 2023-10-13 01:09:41 +0900 |
| commit | 10ba3fc302d68f977ce958b27a46ce0dab537f0c (patch) | |
| tree | bd109a004fd881593a6609f0618419900fb20f33 /thread_pthread_mn.c | |
| parent | 4387af1b4a16fbd181a7c42424ffb8cf92d55110 (diff) | |
| download | ruby-10ba3fc302d68f977ce958b27a46ce0dab537f0c.tar.gz | |
Use `sysconf()` to get PAGE_SIZE
Some systems use not 4096 page size (64KB for example).
Diffstat (limited to 'thread_pthread_mn.c')
| -rw-r--r-- | thread_pthread_mn.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/thread_pthread_mn.c b/thread_pthread_mn.c index 64266683cd..8aaa1b8337 100644 --- a/thread_pthread_mn.c +++ b/thread_pthread_mn.c @@ -116,8 +116,20 @@ thread_sched_wait_events(struct rb_thread_sched *sched, rb_thread_t *th, int fd, /// stack management +static int +get_sysconf_page_size(void) +{ + static long page_size = 0; + + if (UNLIKELY(page_size == 0)) { + page_size = sysconf(_SC_PAGESIZE); + VM_ASSERT(page_size < INT_MAX); + } + return (int)page_size; +} + #define MSTACK_CHUNK_SIZE (512 * 1024 * 1024) // 512MB -#define MSTACK_PAGE_SIZE 4096 +#define MSTACK_PAGE_SIZE get_sysconf_page_size() #define MSTACK_CHUNK_PAGE_NUM (MSTACK_CHUNK_SIZE / MSTACK_PAGE_SIZE - 1) // 1 is start redzone // 512MB chunk |