On Wed, Feb 26, 2014 at 5:13 PM, Weinn <clanlab.proj@xxxxxxxxx> wrote: > On Mon, Feb 24, 2014 at 10:57 PM, Manu Gautam <mgautam@xxxxxxxxxxxxxx> wrote: > >> On 2/22/2014 11:11 AM, Clanlab (Taiwan) Linux Project wrote: >>> In order to reduce the interrupt times in the embedded system, >>> a receiving workqueue is introduced. >>> This modification also enhanced the overall throughput as the >>> benefits of reducing interrupt occurrence. >> Hi all, I've found that the NAPI version of my implementation was slower then the previous work queue implementation. I think I can post it later and let's see where the parameters codes/ could be adjustment. Currently the weight/budget of rx_napi is 16 (GETHER_NAPI_WEIGHT == 16) netif_napi_add(net, &dev->rx_napi, gether_poll, GETHER_NAPI_WEIGHT); Should I send a new patch which with new description about NAPI version? Or should I just send the patch v3 and use the same patch subject? Here is the benchmark (USB High speed) on RX channel. (PC->Device) With work queue is implemented. [ 3] 2.0- 3.0 sec 9.75 MBytes 81.8 Mbits/sec [ 3] 3.0- 4.0 sec 10.4 MBytes 87.0 Mbits/sec [ 3] 4.0- 5.0 sec 10.2 MBytes 86.0 Mbits/sec [ 3] 5.0- 6.0 sec 10.4 MBytes 87.0 Mbits/sec [ 3] 6.0- 7.0 sec 10.4 MBytes 87.0 Mbits/sec [ 3] 7.0- 8.0 sec 9.88 MBytes 82.8 Mbits/sec [ 3] 8.0- 9.0 sec 10.5 MBytes 88.1 Mbits/sec [ 3] 9.0-10.0 sec 10.5 MBytes 88.1 Mbits/sec With NAPI is implemented. [ 3] 23.0-24.0 sec 9.25 MBytes 77.6 Mbits/sec [ 3] 24.0-25.0 sec 9.50 MBytes 79.7 Mbits/sec [ 3] 25.0-26.0 sec 9.75 MBytes 81.8 Mbits/sec [ 3] 26.0-27.0 sec 9.25 MBytes 77.6 Mbits/sec [ 3] 27.0-28.0 sec 9.12 MBytes 76.5 Mbits/sec [ 3] 28.0-29.0 sec 10.4 MBytes 87.0 Mbits/sec [ 3] 29.0-30.0 sec 10.1 MBytes 84.9 Mbits/sec [ 3] 30.0-31.0 sec 9.62 MBytes 80.7 Mbits/sec [ 3] 31.0-32.0 sec 10.0 MBytes 83.9 Mbits/sec Best regards, Weinn -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
