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Subject DO NOT REPLY [Bug 44454] busy count reported in mod_jk inflated, causes incorrect balancing
Date Tue, 22 Jun 2010 12:00:39 GMT

--- Comment #24 from Sebb <> 2010-06-22 08:00:29 EDT ---
Oops, sorry! Though a JVM is not involved here, increment still requires two
separate memory operations.

BTW, shared memory can behave very unexpectedly - e.g. writes by one CPU may
appear out of order to another CPU unless appropriate instructions (memory
barriers) are used. This is in addition to the problems caused by interleaved
reads/writes, which can affect arithmetic operations potentially even on a
single CPU system.

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