tree 3f132341628fe8fa77a7e00ce26716104bb23a18
parent 1bf967880effd1b03ae1be106b790bf55590f0b6
author Igor Sysoev <igor@sysoev.ru> 1245055390 +0000
committer Igor Sysoev <igor@sysoev.ru> 1245055390 +0000

merge r2889, r2918, and r2921:

fix a pool growing and CPU usage for multi-requests keepalive connections:

*) keepalive_requests
*) try to reuse last 4 free large allocation links
*) do not test a pool block space if we can not allocated from
   the block 4 times