Squid有问题了，CPU占用99%

x2x4

客户端相应奇慢  
CPU 至强 2.4G *2  
2G RAM

squidclient mgr:utilication  如下

sample_start_time = 1218427222.76964 (Mon, 11 Aug 2008 04:00:22 GMT)
sample_end_time = 1218427522.77027 (Mon, 11 Aug 2008 04:05:22 GMT)
client_http.requests = 3.473333/sec
client_http.hits = 0.903333/sec
client_http.errors = 0.000000/sec
client_http.kbytes_in = 2.526666/sec
client_http.kbytes_out = 15.959997/sec
client_http.all_median_svc_time = 0.066405 seconds
client_http.miss_median_svc_time = 0.087290 seconds
client_http.nm_median_svc_time = 0.000000 seconds
client_http.nh_median_svc_time = 0.074090 seconds
client_http.hit_median_svc_time = 0.000000 seconds
server.all.requests = 2.363333/sec
server.all.errors = 0.000000/sec
server.all.kbytes_in = 11.809998/sec
server.all.kbytes_out = 2.336666/sec
server.http.requests = 2.363333/sec
server.http.errors = 0.000000/sec
server.http.kbytes_in = 11.809998/sec
server.http.kbytes_out = 2.336666/sec
server.ftp.requests = 0.000000/sec
server.ftp.errors = 0.000000/sec
server.ftp.kbytes_in = 0.000000/sec
server.ftp.kbytes_out = 0.000000/sec
server.other.requests = 0.000000/sec
server.other.errors = 0.000000/sec
server.other.kbytes_in = 0.000000/sec
server.other.kbytes_out = 0.000000/sec
icp.pkts_sent = 0.000000/sec
icp.pkts_recv = 0.000000/sec
icp.queries_sent = 0.000000/sec
icp.replies_sent = 0.000000/sec
icp.queries_recv = 0.000000/sec
icp.replies_recv = 0.000000/sec
icp.replies_queued = 0.000000/sec
icp.query_timeouts = 0.000000/sec
icp.kbytes_sent = 0.000000/sec
icp.kbytes_recv = 0.000000/sec
icp.q_kbytes_sent = 0.000000/sec
icp.r_kbytes_sent = 0.000000/sec
icp.q_kbytes_recv = 0.000000/sec
icp.r_kbytes_recv = 0.000000/sec
icp.query_median_svc_time = 0.000000 seconds
icp.reply_median_svc_time = 0.000000 seconds
dns.median_svc_time = 5.450779 seconds
unlink.requests = 0.313333/sec
page_faults = 0.000000/sec
select_loops = 20647.038997/sec
select_fds = 56794.928073/sec
average_select_fd_period = 0.000016/fd
median_select_fds = 0.996094
swap.outs = 0.636667/sec
swap.ins = 2.166666/sec
swap.files_cleaned = 0.000000/sec
aborted_requests = 0.106667/sec
syscalls.polls = 21551.842141/sec
syscalls.disk.opens = 1.716666/sec
syscalls.disk.closes = 1.720000/sec
syscalls.disk.reads = 1.830000/sec
syscalls.disk.writes = 3.443333/sec
syscalls.disk.seeks = 0.036667/sec
syscalls.disk.unlinks = 0.313333/sec
syscalls.sock.accepts = 2.346666/sec
syscalls.sock.sockets = 1.106666/sec
syscalls.sock.connects = 1.100000/sec
syscalls.sock.binds = 1.106666/sec
syscalls.sock.closes = 2.306666/sec
syscalls.sock.reads = 56782.828076/sec
syscalls.sock.writes = 13.939997/sec
syscalls.sock.recvfroms = 0.743333/sec
syscalls.sock.sendtos = 0.810000/sec
cpu_time = 299.855415 seconds
wall_time = 300.000063 seconds
cpu_usage = 99.951784%

是不是可能有客户端中病毒，不停的tcp请求3218？ LAST_ACK ?

x2x4

没人帮忙吗？

问题貌似就今天出来的，上周还好的。 重启squid后正常个几分钟然后又开始  

我限制了客户端的并发，每个客户端并发最多50次

这是最近的一次

client_http.requests = 4.856664/sec
client_http.hits = 1.853332/sec
client_http.errors = 0.000000/sec
client_http.kbytes_in = 3.143332/sec
client_http.kbytes_out = 9.303329/sec
client_http.all_median_svc_time = 0.087290 seconds
client_http.miss_median_svc_time = 0.114648 seconds
client_http.nm_median_svc_time = 0.000000 seconds
client_http.nh_median_svc_time = 0.158884 seconds
client_http.hit_median_svc_time = 0.000000 seconds
server.all.requests = 3.646665/sec
server.all.errors = 0.000000/sec
server.all.kbytes_in = 7.733330/sec
server.all.kbytes_out = 2.876665/sec
server.http.requests = 3.646665/sec
server.http.errors = 0.000000/sec
server.http.kbytes_in = 7.733330/sec
server.http.kbytes_out = 2.876665/sec
server.ftp.requests = 0.000000/sec
server.ftp.errors = 0.000000/sec
server.ftp.kbytes_in = 0.000000/sec
server.ftp.kbytes_out = 0.000000/sec
server.other.requests = 0.000000/sec
server.other.errors = 0.000000/sec
server.other.kbytes_in = 0.000000/sec
server.other.kbytes_out = 0.000000/sec
icp.pkts_sent = 0.000000/sec
icp.pkts_recv = 0.000000/sec
icp.queries_sent = 0.000000/sec
icp.replies_sent = 0.000000/sec
icp.queries_recv = 0.000000/sec
icp.replies_recv = 0.000000/sec
icp.replies_queued = 0.000000/sec
icp.query_timeouts = 0.000000/sec
icp.kbytes_sent = 0.000000/sec
icp.kbytes_recv = 0.000000/sec
icp.q_kbytes_sent = 0.000000/sec
icp.r_kbytes_sent = 0.000000/sec
icp.q_kbytes_recv = 0.000000/sec
icp.r_kbytes_recv = 0.000000/sec
icp.query_median_svc_time = 0.000000 seconds
icp.reply_median_svc_time = 0.000000 seconds
dns.median_svc_time = 5.214282 seconds
unlink.requests = 0.216667/sec
page_faults = 0.000000/sec
select_loops = 16974.842305/sec
select_fds = 29209.173425/sec
average_select_fd_period = 0.000032/fd
median_select_fds = 0.996094
swap.outs = 0.513333/sec
swap.ins = 1.226666/sec
swap.files_cleaned = 0.066667/sec
aborted_requests = 0.043333/sec
syscalls.polls = 17514.808727/sec
syscalls.disk.opens = 1.126666/sec
syscalls.disk.closes = 1.126666/sec
syscalls.disk.reads = 0.733333/sec
syscalls.disk.writes = 2.303332/sec
syscalls.disk.seeks = 0.000000/sec
syscalls.disk.unlinks = 0.216667/sec
syscalls.sock.accepts = 2.839999/sec
syscalls.sock.sockets = 2.846665/sec
syscalls.sock.connects = 2.803332/sec
syscalls.sock.binds = 2.846665/sec
syscalls.sock.closes = 4.489998/sec
syscalls.sock.reads = 29197.260097/sec
syscalls.sock.writes = 13.393327/sec
syscalls.sock.recvfroms = 0.463333/sec
syscalls.sock.sendtos = 0.513333/sec
cpu_time = 298.335645 seconds
wall_time = 300.000136 seconds
cpu_usage = 99.445170%


netstat -antp | grep -c squid
98

netstat -antp | grep squid | grep -c 192.168.1.
65