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Use /dev/zero for disk rate check

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/dev/random is slow by design and probably a bottleneck in the check. /dev/zero should be faster.
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q-wertz 2025-01-09 15:10:26 +01:00 committed by joerg.hofrichter@emerson.com
parent 0a6d5fc934
commit a0a3c3a856
1 changed files with 1 additions and 1 deletions
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2
host/examples/rx_samples_to_file.cpp
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@ -64,7 +64,7 @@ double disk_rate_check(const size_t sample_type_size,
boost::filesystem::path(file).parent_path() / boost::filesystem::unique_path();
std::string disk_check_proc_str =
"dd if=/dev/random of=" + temp_file.native()
"dd if=/dev/zero of=" + temp_file.native()
+ " bs=" + std::to_string(samps_per_buff * channel_count * sample_type_size)
+ " count=100";