Optimize CPU info gathering for high thread count systems #172
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Replaces line-by-line bash loop with grep/awk commands for processing /proc/cpuinfo, reducing execution time from 40+ seconds to <1 second on systems with 768+ threads. On high thread count systems (e.g., dual AMD EPYC with 768 threads), /proc/cpuinfo contains ~19,200 lines. The original while-loop implementation caused nhc_hw_gather_data() to timeout even with TIMEOUT=600. The optimized implementation uses grep and awk for direct value extraction, maintaining identical functionality while dramatically improving performance. Fixes mej#30
TheWitness
approved these changes
Nov 5, 2025
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I'm having the same issue on even 288 thread zen3 servers |
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Replaces line-by-line bash loop with grep/awk commands for processing /proc/cpuinfo, reducing execution time from 40+ seconds to <1 second on systems with 768+ threads.
On high thread count systems (e.g., dual AMD EPYC with 768 threads), /proc/cpuinfo contains ~19,200 lines. The original while-loop implementation caused nhc_hw_gather_data() to timeout even with TIMEOUT=600.
The optimized implementation uses grep and awk for direct value extraction, maintaining identical functionality while dramatically improving performance.
Fixes #30