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fix divide by zero error #85

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Merged
merged 1 commit into from
Aug 21, 2025
Merged

fix divide by zero error #85

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15 changes: 8 additions & 7 deletions thread.c
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Original file line number Diff line number Diff line change
Expand Up @@ -662,16 +662,17 @@ int run_main_thread(struct options *opts, struct callbacks *cb,
control_plane_destroy(cp);

if (opts->rx_zerocopy) {
uint64_t total_rx_zc_bytes = 0;
uint64_t total_rx_bytes = 0;
uint64_t percent_mmaped;
uint64_t total_zc_bytes = 0;
uint64_t total_bytes = 0;
uint64_t percent_mmaped = 0;

for (int i = 0; i < opts->num_threads; i++) {
total_rx_zc_bytes += ts[i].io_stats.rx_zc_bytes;
total_rx_bytes += ts[i].io_stats.rx_bytes;
total_zc_bytes += ts[i].io_stats.rx_zc_bytes;
total_bytes += ts[i].io_stats.rx_bytes;
}
percent_mmaped = 100 * total_rx_zc_bytes / total_rx_bytes;
PRINT(cb, "bytes_mmaped", "%lu", total_rx_zc_bytes);
if (total_zc_bytes > 0)
percent_mmaped = 100 * total_zc_bytes / total_bytes;
PRINT(cb, "bytes_mmaped", "%lu", total_zc_bytes);
PRINT(cb, "percent_mmaped", "%lu", percent_mmaped);
if (percent_mmaped < 10) {
LOG_WARN(cb, "Little traffic is being handled by "
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