search for: change_tx_queue_len

On 16-06-29 08:52 PM, Jason Wang wrote: > This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this > will be triggered when tx_queue_len. It could be used by net device > who want to do some processing at that time. An example is tun who may > want to resize tx array when tx_queue_len is changed. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > in...

On 16-06-29 08:52 PM, Jason Wang wrote: > This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this > will be triggered when tx_queue_len. It could be used by net device > who want to do some processing at that time. An example is tun who may > want to resize tx array when tx_queue_len is changed. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > in...

On 2016?06?30? 13:12, Jason Wang wrote: > > > On 2016?06?30? 12:56, John Fastabend wrote: >> On 16-06-29 08:52 PM, Jason Wang wrote: >>> This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this >>> will be triggered when tx_queue_len. It could be used by net device >>> who want to do some processing at that time. An example is tun who may >>> want to resize tx array when tx_queue_len is changed. >>> >>> Signed-off-by: Jason Wang <jasow...

On 2016?06?30? 13:12, Jason Wang wrote: > > > On 2016?06?30? 12:56, John Fastabend wrote: >> On 16-06-29 08:52 PM, Jason Wang wrote: >>> This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this >>> will be triggered when tx_queue_len. It could be used by net device >>> who want to do some processing at that time. An example is tun who may >>> want to resize tx array when tx_queue_len is changed. >>> >>> Signed-off-by: Jason Wang <jasow...

...all_chain+0xe/0x10 [ 72.499801] [<ffffffff810eeb56>] raw_notifier_call_chain+0x16/0x20 [ 72.506001] [<ffffffff8160eb30>] call_netdevice_notifiers_info+0x40/0x70 [ 72.512706] [<ffffffff8160ec36>] call_netdevice_notifiers+0x16/0x20 [ 72.518986] [<ffffffff816365f8>] change_tx_queue_len+0x38/0x80 [ 72.524838] [<ffffffff816381cf>] netdev_store.isra.5+0xbf/0xd0 [ 72.530688] [<ffffffff81638330>] tx_queue_len_store+0x50/0x60 [ 72.536459] [<ffffffff814a6798>] dev_attr_store+0x18/0x30 [ 72.541888] [<ffffffff812ea3ff>] sysfs_kf_write+0x4f/0x70 [ 72.5...

...all_chain+0xe/0x10 [ 72.499801] [<ffffffff810eeb56>] raw_notifier_call_chain+0x16/0x20 [ 72.506001] [<ffffffff8160eb30>] call_netdevice_notifiers_info+0x40/0x70 [ 72.512706] [<ffffffff8160ec36>] call_netdevice_notifiers+0x16/0x20 [ 72.518986] [<ffffffff816365f8>] change_tx_queue_len+0x38/0x80 [ 72.524838] [<ffffffff816381cf>] netdev_store.isra.5+0xbf/0xd0 [ 72.530688] [<ffffffff81638330>] tx_queue_len_store+0x50/0x60 [ 72.536459] [<ffffffff814a6798>] dev_attr_store+0x18/0x30 [ 72.541888] [<ffffffff812ea3ff>] sysfs_kf_write+0x4f/0x70 [ 72.5...

On 2016?06?30? 12:56, John Fastabend wrote: > On 16-06-29 08:52 PM, Jason Wang wrote: >> This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this >> will be triggered when tx_queue_len. It could be used by net device >> who want to do some processing at that time. An example is tun who may >> want to resize tx array when tx_queue_len is changed. >> >> Signed-off-by: Jason Wang <jasowang at redhat.com&gt...

This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this will be triggered when tx_queue_len. It could be used by net device who want to do some processing at that time. An example is tun who may want to resize tx array when tx_queue_len is changed. Signed-off-by: Jason Wang <jasowang at redhat.com> --- include/linux/netdevice.h | 1 + net...

This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this will be triggered when tx_queue_len. It could be used by net device who want to do some processing at that time. An example is tun who may want to resize tx array when tx_queue_len is changed. Cc: John Fastabend <john.r.fastabend at intel.com> Signed-off-by: Jason Wang <jasowang at...

...gt; [ 72.499801] [<ffffffff810eeb56>] raw_notifier_call_chain+0x16/0x20 > [ 72.506001] [<ffffffff8160eb30>] call_netdevice_notifiers_info+0x40/0x70 > [ 72.512706] [<ffffffff8160ec36>] call_netdevice_notifiers+0x16/0x20 > [ 72.518986] [<ffffffff816365f8>] change_tx_queue_len+0x38/0x80 > [ 72.524838] [<ffffffff816381cf>] netdev_store.isra.5+0xbf/0xd0 > [ 72.530688] [<ffffffff81638330>] tx_queue_len_store+0x50/0x60 > [ 72.536459] [<ffffffff814a6798>] dev_attr_store+0x18/0x30 > [ 72.541888] [<ffffffff812ea3ff>] sysfs_kf_writ...

...changed for a netdev. - resize all queues during the tx_queue_len changing. Tests shows about 15% improvement on guest rx pps: Before: ~1300000pps After : ~1500000pps Changes from V2: - add multiple rings resizing support for ptr_ring/skb_array - add zero length ring support - introdce a NETDEV_CHANGE_TX_QUEUE_LEN - drop new flags Changes from V1: - switch to use skb array instead of a customized circular buffer - add non-blocking support - rename .peek to .peek_len - drop lockless peeking since test show very minor improvement Jason Wang (5): ptr_ring: support zero length ring skb_array: minor tweak...

...changed for a netdev. - resize all queues during the tx_queue_len changing. Tests shows about 15% improvement on guest rx pps: Before: ~1300000pps After : ~1500000pps Changes from V2: - add multiple rings resizing support for ptr_ring/skb_array - add zero length ring support - introdce a NETDEV_CHANGE_TX_QUEUE_LEN - drop new flags Changes from V1: - switch to use skb array instead of a customized circular buffer - add non-blocking support - rename .peek to .peek_len - drop lockless peeking since test show very minor improvement Jason Wang (5): ptr_ring: support zero length ring skb_array: minor tweak...

...gth ring. - introduce a notifier which was triggered when tx_queue_len was changed for a netdev. - resize all queues during the tx_queue_len changing. Tests shows about 15% improvement on guest rx pps: Before: ~1300000pps After : ~1500000pps Changes from V3: - fix kbuild warnings - call NETDEV_CHANGE_TX_QUEUE_LEN on IFLA_TXQLEN Changes from V2: - add multiple rings resizing support for ptr_ring/skb_array - add zero length ring support - introdce a NETDEV_CHANGE_TX_QUEUE_LEN - drop new flags Changes from V1: - switch to use skb array instead of a customized circular buffer - add non-blocking support - rena...

...gth ring. - introduce a notifier which was triggered when tx_queue_len was changed for a netdev. - resize all queues during the tx_queue_len changing. Tests shows about 15% improvement on guest rx pps: Before: ~1300000pps After : ~1500000pps Changes from V3: - fix kbuild warnings - call NETDEV_CHANGE_TX_QUEUE_LEN on IFLA_TXQLEN Changes from V2: - add multiple rings resizing support for ptr_ring/skb_array - add zero length ring support - introdce a NETDEV_CHANGE_TX_QUEUE_LEN - drop new flags Changes from V1: - switch to use skb array instead of a customized circular buffer - add non-blocking support - rena...