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Fix Lzbench empty metrics on ARM64 due to stdout buffering #664

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Fix Lzbench empty metrics on ARM64 due to stdout buffering #664

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5 changes: 4 additions & 1 deletion src/VirtualClient/VirtualClient.Actions/Lzbench/lzbenchexecutor.sh
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Original file line number Diff line number Diff line change
@@ -1,5 +1,8 @@
#!/bin/bash

echo $1
./lzbench $1 > results-summary.csv
# Use stdbuf to force line-buffered stdout so CSV data is flushed incrementally
# to disk rather than held in a full-buffer until process exit. Without this,
# a timeout-based kill loses all buffered output (especially on ARM64).
stdbuf -oL ./lzbench $1 > results-summary.csv

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