[squid-users] Problem: high use of processor time

Hello,
in this university we are using many versions of squid (2.4stable7, 2.5stable1 and 2.5stable3) with the same problem.
Time later from start, the squid process use 99.9 of time processor.
Squid is running on a Athlon XP 2000+,512 Mb of memory and a 20 Gb cache on a IDE 7200 rpm disk. Sisop is Linux Mandrake 8.2, standard installation.
We try many compilation options (enable-async-io, etc.) without better performance.

Known related problems to this ? Any idea ?

Thanks in advance

Sergio.

Stats show:
  client_http.requests = 5.993292/sec
  client_http.kbytes_in = 2.873313/sec
  client_http.kbytes_out = 28.059805/sec
  client_http.all_median_svc_time = 3.112631 seconds
  client_http.miss_median_svc_time = 7.794210 seconds
  client_http.nm_median_svc_time = 0.000911 seconds
  client_http.nh_median_svc_time = 3.112631 seconds
  client_http.hit_median_svc_time = 0.000911 seconds
  server.all.requests = 3.563309/sec
  server.all.errors = 0.000000/sec
  server.all.kbytes_in = 25.863153/sec
  server.all.kbytes_out = 1.966653/sec
  server.http.requests = 3.449976/sec
  server.http.kbytes_in = 25.366490/sec
  server.http.kbytes_out = 1.923320/sec
  dns.median_svc_time = 0.018519 seconds
  unlink.requests = 0.096666/sec
  page_faults = 0.003333/sec
  select_loops = 931.210185/sec
  select_fds = 1308.447560/sec
  swap.outs = 0.619996/sec
  swap.ins = 2.413317/sec
  swap.files_cleaned = 0.000000/sec
  aborted_requests = 1.923320/sec
  syscalls.polls = 961.009978/sec
  syscalls.disk.opens = 1.799987/sec
  syscalls.disk.closes = 1.826654/sec
  syscalls.disk.reads = 1.449990/sec
  syscalls.disk.writes = 2.999979/sec
  syscalls.disk.seeks = 0.066666/sec
  syscalls.disk.unlinks = 0.000000/sec
  syscalls.sock.accepts = 5.433296/sec
  syscalls.sock.sockets = 3.633308/sec
  syscalls.sock.connects = 3.603308/sec
  syscalls.sock.binds = 0.003333/sec
  syscalls.sock.closes = 6.496621/sec
  syscalls.sock.reads = 1282.134410/sec
  syscalls.sock.writes = 28.383136/sec
  syscalls.sock.recvfroms = 5.986625/sec
  syscalls.sock.sendtos = 3.016646/sec
  cpu_time = 299.290000 seconds
  wall_time = 300.002088 seconds
  cpu_usage = 99.762639%

___________________________________
NOCC, http://nocc.sourceforge.net
Received on Mon Aug 25 2003 - 10:15:38 MDT