Increase the USB speed by fixing synchronization waits in usb_write() #2145
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To make the full use of the ping-pong endpoint Transfer speed before this fix: 616448,618496,618496,615424,615424->616857.6 bytes/s Transfer speed after this fix: 707584,709632,707584,709632,710656->709017.6 bytes/s (+14.9%) Tested by running hw status
Before: 708608,708608,707584,707584,708608->708198.4 bytes/s After: 722944,733184,732160,731136,733184->730521.6 bytes/s Added some note for ping-pong mode and non ping-pong mode
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Awesome improvement, |
Some nice improvements indeed! |
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Transfer speed before this fix:
616448, 618496, 618496, 615424, 615424 -> average: 616857.6 bytes/s
Transfer speed after this fix:
707584, 709632, 707584, 709632, 710656 -> average: 709017.6 bytes/s (+14.9%)722944, 733184, 732160, 731136, 733184 -> average: 730521.6 bytes/s (+18.4%)
Tested by running
hw status