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Fix process startup
escape the % that got added in 92168cb
so that the process starts up ok.
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parent
92168cbbc5
commit
d2352347cf
@ -1,5 +1,6 @@
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# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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# Copyright 2017 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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@ -148,22 +149,24 @@ class ServerConfig(Config):
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# When running as a daemon, the file to store the pid in
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pid_file: %(pid_file)s
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# CPU affinity mask. Setting this restricts the CPUs on which the process
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# will be scheduled. It is represented as a bitmask, with the lowest order
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# bit corresponding to the first logical CPU and the highest order bit
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# corresponding to the last logical CPU. Not all CPUs may exist on a
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# given system but a mask may specify more CPUs than are present.
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# CPU affinity mask. Setting this restricts the CPUs on which the
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# process will be scheduled. It is represented as a bitmask, with the
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# lowest order bit corresponding to the first logical CPU and the
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# highest order bit corresponding to the last logical CPU. Not all CPUs
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# may exist on a given system but a mask may specify more CPUs than are
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# present.
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#
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# For example:
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# 0x00000001 is processor #0,
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# 0x00000003 is processors #0 and #1,
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# 0xFFFFFFFF is all processors (#0 through #31).
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#
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# This is desirable for Synapse processes (especially workers), which are
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# inherently single-threaded due to the GIL and can suffer a 30-40% slowdown
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# due to cache blow-out and thread context switching if the scheduler happens
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# to schedule the underlying threads across different cores.
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# See https://www.mirantis.com/blog/improve-performance-python-programs-restricting-single-cpu/
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# Pinning a Python process to a single CPU is desirable, because Python
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# is inherently single-threaded due to the GIL, and can suffer a
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# 30-40%% slowdown due to cache blow-out and thread context switching
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# if the scheduler happens to schedule the underlying threads across
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# different cores. See
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# https://www.mirantis.com/blog/improve-performance-python-programs-restricting-single-cpu/.
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#
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# cpu_affinity: 0xFFFFFFFF
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