31 lines
1.1 KiB
Bash
31 lines
1.1 KiB
Bash
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#!/bin/sh
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# this script verifies that /dev/shm is big enough for test purposes
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# 512MB seems to be enough with room to spare at the time of writing this test
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# (motivation for this check is the default docker /dev/shm size of 64M, which
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# was occasionally overrun when running the tests)
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req_min_size_megabytes=512
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cur_size=`df -BM --output=size /dev/shm | awk ' NR==2 { print $1 } ' | cut -f 1 -d 'M'`
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if test "$V" = "2"
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then
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echo -n "Checking /dev/shm size..."
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fi
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if test "$cur_size" -lt "$req_min_size_megabytes"
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then
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echo "/dev/shm size ${cur_size}M is too small, attempting to enlarge to ${req_min_size_megabytes}M."
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sudo mount -o remount /dev/shm -o size=512M
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cur_size=`df -BM --output=size /dev/shm | awk ' NR==2 { print $1 } ' | cut -f 1 -d 'M'`
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if test "$cur_size" -lt "$req_min_size_megabytes"
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then
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echo "Couldn't enlarge /dev/shm. Please enlarge it manually so that it's at least ${req_min_size_megabytes}M big."
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exit 1
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fi
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echo "/dev/shm successfully enlarged."
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elif test "$V" = "2"
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then
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echo "OK (current size: ${cur_size}M, required size: ${req_min_size_megabytes}M)"
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fi
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