I've backed up some files(about 20G,with many subdirectories and files) a months ago to an USB drive,and I use rsync to check if there are changes.After the process,I checked the log file and found no update needed.But the stats said:
Number of files: 61775
Number of files transferred: 0
Total file size: 24169314260 bytes
Total transferred file size: 0 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 2260510
File list generation time: 8631.470 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 2288918
Total bytes received: 28412
sent 2288918 bytes received 28412 bytes 133.34 bytes/sec
total size is 24169314260 speedup is 10429.81
That's awful,how to improve file list generation performance?
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