search for: last_pkt

...t_inc_rx_pkt(vvs, pkt); + + /* Try to copy small packets into the buffer of last packet queued, + * to avoid wasting memory queueing the entire buffer with a small + * payload. + */ + if (pkt->len <= GOOD_COPY_LEN && !list_empty(&vvs->rx_queue)) { + struct virtio_vsock_pkt *last_pkt; + + last_pkt = list_last_entry(&vvs->rx_queue, + struct virtio_vsock_pkt, list); + + /* If there is space in the last packet queued, we copy the + * new packet in its buffer. + */ + if (pkt->len <= last_pkt->buf_len - last_pkt->len) { + memcpy(last_pkt->buf +...

...t_inc_rx_pkt(vvs, pkt); + + /* Try to copy small packets into the buffer of last packet queued, + * to avoid wasting memory queueing the entire buffer with a small + * payload. + */ + if (pkt->len <= GOOD_COPY_LEN && !list_empty(&vvs->rx_queue)) { + struct virtio_vsock_pkt *last_pkt; + + last_pkt = list_last_entry(&vvs->rx_queue, + struct virtio_vsock_pkt, list); + + /* If there is space in the last packet queued, we copy the + * new packet in its buffer. + */ + if (pkt->len <= last_pkt->buf_len - last_pkt->len) { + memcpy(last_pkt->buf +...

...+ /* Try to copy small packets into the buffer of last packet queued, > + * to avoid wasting memory queueing the entire buffer with a small > + * payload. > + */ > + if (pkt->len <= GOOD_COPY_LEN && !list_empty(&vvs->rx_queue)) { > + struct virtio_vsock_pkt *last_pkt; > + > + last_pkt = list_last_entry(&vvs->rx_queue, > + struct virtio_vsock_pkt, list); > + > + /* If there is space in the last packet queued, we copy the > + * new packet in its buffer. > + */ > + if (pkt->len <= last_pkt->buf_len - last_pkt-&...

...+ /* Try to copy small packets into the buffer of last packet queued, > + * to avoid wasting memory queueing the entire buffer with a small > + * payload. > + */ > + if (pkt->len <= GOOD_COPY_LEN && !list_empty(&vvs->rx_queue)) { > + struct virtio_vsock_pkt *last_pkt; > + > + last_pkt = list_last_entry(&vvs->rx_queue, > + struct virtio_vsock_pkt, list); > + > + /* If there is space in the last packet queued, we copy the > + * new packet in its buffer. > + */ > + if (pkt->len <= last_pkt->buf_len - last_pkt-&...

This series tries to increase the throughput of virtio-vsock with slight changes. While I was testing the v2 of this series I discovered an huge use of memory, so I added patch 1 to mitigate this issue. I put it in this series in order to better track the performance trends. v3: - Patch 1: added a threshold to copy only small packets [Jason] - Patch 1: replaced the allocation of a new buffer

This series tries to increase the throughput of virtio-vsock with slight changes. While I was testing the v2 of this series I discovered an huge use of memory, so I added patch 1 to mitigate this issue. I put it in this series in order to better track the performance trends. v5: - rebased all patches on net-next - added Stefan's R-b and Michael's A-b v4:

This series tries to increase the throughput of virtio-vsock with slight changes. While I was testing the v2 of this series I discovered an huge use of memory, so I added patch 1 to mitigate this issue. I put it in this series in order to better track the performance trends. v5: - rebased all patches on net-next - added Stefan's R-b and Michael's A-b v4:

This series tries to increase the throughput of virtio-vsock with slight changes. While I was testing the v2 of this series I discovered an huge use of memory, so I added patch 1 to mitigate this issue. I put it in this series in order to better track the performance trends. v4: - rebased all patches on current master (conflicts is Patch 4) - Patch 1: added Stefan's R-b - Patch 3: removed

This series tries to increase the throughput of virtio-vsock with slight changes. While I was testing the v2 of this series I discovered an huge use of memory, so I added patch 1 to mitigate this issue. I put it in this series in order to better track the performance trends. v4: - rebased all patches on current master (conflicts is Patch 4) - Patch 1: added Stefan's R-b - Patch 3: removed

...tion then goes to ack_again, causing atfptd to resend the packet that just timed out. Then on the next call the original(!) packet is received anyway and handled according to plan. But the next packet to be received will be the same packet again, causing tftp.c to hit this code: if (serial != last_pkt) { /* * Wrong packet, ACK the packet and try again. * This is presumably because the ACK got lost, * so the server just resent the previous packet. */ < #if 0 < printf("Wrong packet, wanted %04x, got %04x\n", \ < htons(la...

...ing atfptd to resend the packet > that just timed out. Then on the next call the original(!) packet is > received anyway and handled according to plan. > > But the next packet to be received will be the same packet again, > causing tftp.c to hit this code: > > if (serial != last_pkt) { > /* > * Wrong packet, ACK the packet and try again. > * This is presumably because the ACK got lost, > * so the server just resent the previous packet. > */ > < #if 0 > < printf("Wrong packet, wanted %04x, got %04x\n&qu...