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tests/leaks.sh: add procfs method for Linux
This allows faster testing for memory leaks on Linux if ksh is compiled without vmalloc.
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@ -44,6 +44,15 @@ then N=512 # number of iterations for each test
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{
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vmstate --format='%(busy_size)u'
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}
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# On Linux, we can use /proc to get byte granularity for vsize (field 23).
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elif [[ -f /proc/$$/stat && $(uname) == Linux ]]
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then N=1024 # number of iterations for each test
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unit=bytes
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tolerance=$((4*N)) # tolerate 4 bytes per iteration to account for malloc artefacts
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function getmem
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{
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cut -f 23 -d ' ' </proc/$$/stat
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}
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# Otherwise, make do with the nonstandard 'rss' (real resident size) keyword
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# of the 'ps' command (the standard 'vsz', virtual size, is not usable).
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elif n=$(ps -o rss= -p "$$" 2>/dev/null) &&
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