Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Ross S. W. Walker schrieb: > > Both Raid's are able to write with >120MB/s in disconnected mode. > > I'm just wondering because I have seen people on the list that get > > ~95MB/s with a similar setup. > > There's lies, damn lies, then benchmarks. Pump a big enough block size > to the storage till you get the throughput you like. Some people throw > 1MB block size and get 115MB/s throughput. > > I always like to use the block sizes my application uses. If it's ext2 > then 4K is a good benchmark, but different apps use different block > sizes. > > Always ask the block size and io pattern for the benchmarks people throw > around. It seems that a. changing the net parameters did help sndbuf-size 240k; max-buffers 20480; max-epoch-size 16384; unplug-watermark 20480; b. changing the bonding mode of the interfaces from balance-rr to balance-xor did help too. I now get about 85MB/s. Maybe that's by accident, but I could watch the write performance go down when increasing the sndbuf-size. Ralf