> -----Original Message----- > From: Shraddha Joshi [mailto:jshrad...@vmware.com] > Sent: Thursday, April 19, 2018 11:19 AM > To: Yong Wang <yongw...@vmware.com> > Cc: dev@dpdk.org; Shraddha Joshi <jshrad...@vmware.com> > Subject: [PATCH] net/vmxnet3: increase rx data ring descriptor size > > Vmxnet3 driver supports receive data ring viz. a set of small sized > buffers that are always mapped by the emulation. If a packet fits into > the receive data ring buffer, the emulation delivers the packet via the > receive data ring. > > Increasing the receive data ring descriptor size from 128 to 256 > showed performance gains as high as 5% for packets smaller than 256. > > Signed-off-by: Shraddha Joshi <jshrad...@vmware.com> > Acked-by: Jin Heo <h...@vmware.com> > Acked-by: Guolin Yang <gy...@vmware.com> > Acked-by: Boon Ang <b...@vmware.com>
Acked-by: Yong Wang <yongw...@vmware.com> > --- > drivers/net/vmxnet3/vmxnet3_ring.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/vmxnet3/vmxnet3_ring.h > b/drivers/net/vmxnet3/vmxnet3_ring.h > index 552180e84..50992349d 100644 > --- a/drivers/net/vmxnet3/vmxnet3_ring.h > +++ b/drivers/net/vmxnet3/vmxnet3_ring.h > @@ -14,7 +14,7 @@ > #define VMXNET3_DEF_RX_RING_SIZE 128 > > /* Default rx data ring desc size */ > -#define VMXNET3_DEF_RXDATA_DESC_SIZE 128 > +#define VMXNET3_DEF_RXDATA_DESC_SIZE 256 > > #define VMXNET3_SUCCESS 0 > #define VMXNET3_FAIL -1 > -- > 2.11.0
