33 lines
875 B
Bash
Executable File
33 lines
875 B
Bash
Executable File
#!/bin/sh
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#
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# Simple tool to calculate max parallel jobs based on
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# memory of builder.
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#
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# MDCache.cc generally runs out of RAM in 4G of memory
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# with parallel=4
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total_ram=$(grep MemTotal /proc/meminfo | awk '{ print $2 }')
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sixtyfour_g=$((64*1024*1024))
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fourtyheight_g=$((48*1024*1024))
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thirtytwo_g=$((32*1024*1024))
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sixteen_g=$((16*1024*1024))
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eight_g=$((8*1024*1024))
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four_g=$((4*1024*1024))
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if [ ${total_ram} -le ${four_g} ]; then
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echo "--max-parallel=1"
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elif [ ${total_ram} -le ${eight_g} ]; then
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echo "--max-parallel=2"
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elif [ ${total_ram} -le ${sixteen_g} ]; then
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echo "--max-parallel=3"
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elif [ ${total_ram} -le ${thirtytwo_g} ]; then
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echo "--max-parallel=6"
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elif [ ${total_ram} -le ${fourtyheight_g} ]; then
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echo "--max-parallel=8"
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elif [ ${total_ram} -le ${sixtyfour_g} ]; then
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echo "--max-parallel=12"
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else
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echo "--max-parallel=16"
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fi
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