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This commit is contained in:
Sergey Petrunya 2009-09-16 22:45:47 +04:00
commit 370aa40f2c
1 changed files with 14 additions and 2 deletions
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16
storage/xtradb/srv/srv0start.c
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@ -1119,8 +1119,14 @@ innobase_start_or_create_for_mysql(void)
os_aio_use_native_aio = FALSE;
} else {
/* On Win 2000 and XP use async i/o */
os_aio_use_native_aio = TRUE;
/* On Win 2000 and XP currently native async i/o
is not used for xtradb by default */
//os_aio_use_native_aio = TRUE;
os_aio_use_native_aio = FALSE;
fprintf(stderr,
"InnoDB: Windows native async i/o is disabled as default.\n"
"InnoDB: It is not applicable for the current"
" multi io threads implementation.\n");
}
#endif
if (srv_file_flush_method_str == NULL) {
@ -1156,6 +1162,12 @@ innobase_start_or_create_for_mysql(void)
} else if (0 == ut_strcmp(srv_file_flush_method_str,
"async_unbuffered")) {
srv_win_file_flush_method = SRV_WIN_IO_UNBUFFERED;
os_aio_use_native_aio = TRUE;
srv_n_read_io_threads = srv_n_write_io_threads = 1;
fprintf(stderr,
"InnoDB: 'async_unbuffered' was detected as innodb_flush_method.\n"
"InnoDB: Windows native async i/o is enabled.\n"
"InnoDB: And io threads are restricted.\n");
#endif
} else {
fprintf(stderr,