Hi! On 11:03 Fri 17 Apr , Devesh Sharma wrote: > Hello list, > > I have written a network device driver, and to validate it, I am > running a bandwidth measurement tool on it, > I am encountering a strange drop in bandwidth when data size reaches > to 4096, bandwidth figures drop form 24 Mbps (for 2k data size) > to .43 Mbps. what can be the problem, the MTU of my device is 2044. Is > it some how related to functioning of hard_start_xmit? What program/protocol do you use for testing + what kind of device is this? The CPU is not a bottleneck, is it? -Michi -- programing a layer 3+4 network protocol for mesh networks see http://michaelblizek.twilightparadox.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ