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Re: Causeless CPU load waves in backend, on windows, 9.5.5 (EDB binary).

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01.02.2017 1:02, I wrote:
[...]
Could you use process monitor or such to see what the process is doing
while using a lot of CPU?

I'm not sure how to do this, especially considering that the process in
question is running as a service?

Now, some more input:

* 9.5.2 server running on linux x86_64 - unaffected! (What a relief! We
are moving to Centos soon anyway!)

* 9.4.4 server running on win7 32-bit - affected, same thing as on XP.

I've managed to create a "fix" (see diff below).
It looks like the wait logic is somehow broken on windows currently, though I can not find the problem myself yet. It would be great if someone more familiar with the (windows-specific) code came up with ideas.
I have a build environment ready so I could do more tests then.

--- be-secure.c.orig	2017-02-01 22:37:37.228032608 +0300
+++ be-secure.c	2017-02-01 22:51:17.655751292 +0300
@@ -159,6 +159,7 @@
 			 * socket to become ready again.
 			 */
 		}
+                Sleep(15); /* n.zhubr */
 		goto retry;
 	}

@@ -238,6 +239,7 @@
 			 * socket to become ready again.
 			 */
 		}
+                Sleep(15); /* n.zhubr */
 		goto retry;
 	}


Thank you.

Nikolai



Thank you.

Nikolai


Regards,

Andres







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