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justdoit0823/stat_g1_allocation_rate_in_jvm8.awk

Last active January 4, 2021 06:58
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Stat g1 allocation rate in jvm 8 with awk.
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stat_g1_allocation_rate_in_jvm8.awk
awk '/GC pause/ || /Heap:/ {if($0 ~ /GC pause/) {split($2, a, ":"); print a[1];} else {print $NF}}' gc.log|awk 'NR % 4 == 1 {s1 = $0}; NR % 4 == 2 {split($NF, a, "("); split(a[2], b, "->"); h1 = substr(b[2], 1, length(b[2]) -1); if(b[2] ~ /G$/) {h1 = h1 * 1024}}; NR % 4 == 3 {s2 = $0}; NR % 4 == 0 {split($NF, a, "("); h2 = substr(a[1], 1, length(a[1]) -1); if(a[1] ~ /G$/) {h2 = h2 * 1024}; duration = s2 - s1; heap = h2 - h1; print s2, duration, heap / duration; next}'
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