search for: z_rsyncable_simplesum

...d the default behavior is to use the new rolling checksum algorithm. The window and reset block sizes are set to 30 bytes and 4096 bytes respectively. I've found that this gets much better rsync performance when used with the Z_RSYNCABLE_RSSUM checksum algorithm. If you want to play with the Z_RSYNCABLE_SIMPLESUM, and you want to keep your window sizes small, be sure you run several different window sizes - you'll be amazed at how much the compression ratio and rsync performance vary for small window sizes with that algorithm. With Z_RSYNCABLE_RSSUM, the compression ratios and rsync performance are qui...