<html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<br>
-----BEGIN PGP SIGNED MESSAGE----- <br>
Hash: SHA256 <br>
<br>
<br>
<br>
24.02.16 1:11, Heiler Bemerguy пишет:<br>
<span style="white-space: pre;">><br>
> Thanks Alex.<br>
><br>
> We have a simple cache_dir config like this, with no
"workers" defined:<br>
> cache_dir rock /cache2 80000 min-size=0 max-size=32767<br>
> cache_dir aufs /cache 320000 96 256 min-size=32768<br>
><br>
> And we are suffering from a 100% CPU use by a single squid
thread. We have lots of ram, cores and disk space.. but also too
many users:<br>
> Number of clients accessing cache: 1634<br>
> Number of HTTP requests received: 3276691<br>
> Average HTTP requests per minute since start: 12807.1<br>
> Select loop called: 60353401 times, 22.017 ms avg<br>
><br>
> Getting rid of this big aufs and spreading to many rock
stores will improve things here? I've already shrunk the acls and
patterns/regexes etc</span><br>
This is obvious improvements.<br>
<br>
If you have only one-two HDD controllers, you have bottleneck in IO.
You much cores waits HDD access alltogether.........<br>
<br>
First of all you need:<br>
<br>
- - Either many HDD controllers/IO channels;<br>
- - Or Disk array(s) with high-speed controllers and with huge own
cache;<br>
- - Fast HDD array must have fast IO subsystem. For example, FC SAN,
or something.<br>
<br>
<span style="white-space: pre;">><br>
> Best Regards,<br>
></span><br>
<br>
-----BEGIN PGP SIGNATURE-----
<br>
Version: GnuPG v2
<br>
<br>
iQEcBAEBCAAGBQJWzLT2AAoJENNXIZxhPexGXuYIALrQi1MHQNYhCTSc27DSiyod
<br>
tw08m9f3k6cneuWMepcPo41ZqL9Z/pQALK937Nyktfv20gZuJpExRlHJYm+72DZC
<br>
9uMSrcLQjHANmP8WXC4y5uR/EUH43lSQ1m7OzuG8Aghsm9KfLOkaNEjmeAcZtfVp
<br>
BqQySo5Jx/rizq4lb9l96NUAeVGZ1pv4xWj2ZrMz3RmcKwyOpY4w+aAVB3xE8Y/p
<br>
PkWRgwxf6ud8TUcHzq/ZNc5yzBEVOyXDlqshCSXgwOTCzW48DEQOK9KJxvhGQZTl
<br>
kdLvTkbZywgxczjvG5SGXb7jpiSasrX6oa741FpS47H7O6rQ0o4U4UPRmB/9+OI=
<br>
=FWMr
<br>
-----END PGP SIGNATURE-----
<br>
<br>
</body>
</html>