tag:blogger.com,1999:blog-5968355124473522212.post8835123326871891853..comments2024-03-26T19:42:51.465+02:00Comments on Nibble Stew: Weird USB disk slowdown with multiple readersJussihttp://www.blogger.com/profile/03370287682352908292noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5968355124473522212.post-87403514804327339512016-09-10T00:11:52.810+03:002016-09-10T00:11:52.810+03:00This is indeed due to the fact that most USB hard...This is indeed due to the fact that most USB hardware controllers are not built for multi process read/writes but use a polling method which causes large delays when there is contention on the bus to a device (or devices). This shows up a lot in embedded hardware where someone tries to use a rasp pi with a disk and network and then finds that because both are on the same USB bus... The speed is 4MB vs 70.Stephen Smoogenhttps://www.blogger.com/profile/17026786034163911165noreply@blogger.com