2023-12-18 08:07:22 +00:00
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#!/bin/bash
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entry="/usr/share/clickhouse-test/performance/scripts/entrypoint.sh"
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[ ! -e "$entry" ] && echo "ERROR: test scripts are not found" && exit 1
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# Bind everything to one NUMA node, if there's more than one. Theoretically the
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# node #0 should be less stable because of system interruptions. We bind
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# randomly to node 1 or 0 to gather some statistics on that. We have to bind
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# both servers and the tmpfs on which the database is stored. How to do it
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# is unclear, but by default tmpfs uses
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# 'process allocation policy', not sure which process but hopefully the one that
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# writes to it, so just bind the downloader script as well.
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# https://www.kernel.org/doc/Documentation/filesystems/tmpfs.txt
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# Double-escaped backslashes are a tribute to the engineering wonder of docker --
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# it gives '/bin/sh: 1: [bash,: not found' otherwise.
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2024-08-27 13:26:20 +00:00
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echo > compare.log
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numactl --hardware | tee -a compare.log
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2023-12-18 08:07:22 +00:00
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node=$(( RANDOM % $(numactl --hardware | sed -n 's/^.*available:\(.*\)nodes.*$/\1/p') ));
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2024-08-27 13:26:20 +00:00
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echo Will bind to NUMA node $node | tee -a compare.log
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2023-12-18 08:07:22 +00:00
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numactl --cpunodebind=$node --membind=$node $entry
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