From a470cb8a86025fe76570badb7f268b08b4969f40 Mon Sep 17 00:00:00 2001 From: "Neal H. Walfield" Date: Thu, 18 Dec 2008 15:06:58 +0100 Subject: Make the number of reserve messengers a function of the number of threads. 2008-12-18 Neal H. Walfield * message-buffer.c (num_threads): New function. (BUFFERS_LOW_WATER): Define in terms of the number of threads. (BUFFERS_HIGH_WATER): Likewise. --- libhurd-mm/message-buffer.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'libhurd-mm/message-buffer.c') diff --git a/libhurd-mm/message-buffer.c b/libhurd-mm/message-buffer.c index ecb2b58..1bee6a1 100644 --- a/libhurd-mm/message-buffer.c +++ b/libhurd-mm/message-buffer.c @@ -268,8 +268,19 @@ hurd_message_buffer_free (struct hurd_message_buffer *buffer) } } -#define BUFFERS_LOW_WATER 4 -#define BUFFERS_HIGH_WATER 8 +static int +num_threads (void) +{ + extern int __pthread_num_threads __attribute__ ((weak)); + + if (&__pthread_num_threads) + return __pthread_num_threads; + else + return 1; +} + +#define BUFFERS_LOW_WATER (4 + num_threads () * 2) +#define BUFFERS_HIGH_WATER (8 + num_threads () * 3) struct hurd_message_buffer * hurd_message_buffer_alloc (void) -- cgit v1.2.3