From cc14ad9eb6c9b6674f83b270c64e3890ef50260a Mon Sep 17 00:00:00 2001
From: kcwu <kcwu@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Fri, 4 Feb 2005 21:08:15 +0000
Subject: comment on questionable comment

git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@2464 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 include/pttstruct.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'include')

diff --git a/include/pttstruct.h b/include/pttstruct.h
index 8a1c05a3..8d9d1e27 100644
--- a/include/pttstruct.h
+++ b/include/pttstruct.h
@@ -438,7 +438,10 @@ typedef struct keeploc_t {
 #define VALID_USHM_ENTRY(X) ((X) >= 0 && (X) < USHM_SIZE)
 #define USHM_SIZE       (MAX_ACTIVE + 4)
 /* USHM_SIZE 比 MAX_ACTIVE 大是為了防止檢查人數上限時, 又同時衝進來
- * 會造成找 shm 空位的無窮迴圈. 又, 因 USHM 中用 hash, 空間稍大時效率較好. */
+ * 會造成找 shm 空位的無窮迴圈. 
+ * -> 若是這樣, +4 夠嗎?
+ * 又, 因 USHM 中用 hash, 空間稍大時效率較好. 
+ * -> 若是因為 hashing, slot 也許要更多, 譬如兩倍? */
 
 /* MAX_BMs is dirty hardcode 4 in mbbsd/cache.c:is_BM_cache() */
 #define MAX_BMs         4                 /* for BMcache, 一個看板最多幾板主 */
-- 
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