cpu hog

From: Andres Kroonmaa <andre@dont-contact.us>
Date: Tue, 19 Sep 2000 12:48:01 +0200

 Why would squid go nuts on reading from a socket and not handling
 zero-byte reads? this causes bursts of 100% cpu usage.

/1: 2.4793 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4798 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4803 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4810 0.0007 read(690, 0x0F882468, 4095) = 0
/1: 2.4815 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4820 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4825 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4830 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4835 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4840 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4845 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4851 0.0006 read(251, "FE11EC PFE pBF9AFF87 Q 6".., 16384) = 1460
/1: 2.4855 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4862 0.0007 write(86, "FE11EC PFE pBF9AFF87 Q 6".., 1460) = 1460
/1: 2.4866 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4871 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4876 0.0005 read(690, 0x0F882468, 4095) = 0
/1: 2.4883 0.0007 read(32, " V A L I G N = " t o p".., 16384) = 2920
/1: 2.4887 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4894 0.0007 write(420, " V A L I G N = " t o p".., 2920) = 2920
/1: 2.4897 0.0003 read(690, 0x0F882468, 4095) = 0
/1: 2.4903 0.0006 read(690, 0x0F882468, 4095) = 0
/1: 2.4911 0.0008 read(181, "B0 + q 4A2 ` 6 dCCEAA0 e".., 16384) = 1460
/1: 2.4915 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4923 0.0008 write(150, "B0 + q 4A2 ` 6 dCCEAA0 e".., 1460) = 1460
/1: 2.4927 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4931 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4934 0.0003 read(690, 0x0F882468, 4095) = 0
/1: 2.4938 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4941 0.0003 read(690, 0x0F882468, 4095) = 0
/1: 2.4944 0.0003 read(690, 0x0F882468, 4095) = 0
/1: 2.4948 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4952 0.0004 read(690, 0x0F882468, 4095) = 0
/1: 2.4955 0.0003 read(690, 0x0F882468, 4095) = 0
/1: 2.4958 0.0003 read(690, 0x0F882468, 4095) = 0
/1: 2.4961 0.0003 read(690, 0x0F882468, 4095) = 0

------------------------------------
 Andres Kroonmaa <andre@online.ee>
 Delfi Online
 Tel: 6501 731, Fax: 6501 708
 Pärnu mnt. 158, Tallinn,
 11317 Estonia
Received on Tue Sep 19 2000 - 04:50:51 MDT

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