Re: [PATCH v2 net-next 0/2] virtio_net: Expand affinity to arbitrary numbers of cpu and vq

2018-08-11 Thread David Miller
From: Caleb Raitto Date: Thu, 9 Aug 2018 18:18:27 -0700 > Virtio-net tries to pin each virtual queue rx and tx interrupt to a cpu if > there are as many queues as cpus. > > Expand this heuristic to configure a reasonable affinity setting also > when the number of cpus != the number of virtual q

Re: [PATCH] Performance Improvement in CRC16 Calculations.

2018-08-11 Thread Joe Perches
On Sat, 2018-08-11 at 11:36 -0400, Martin K. Petersen wrote: > Jeff, > > > This patch provides a performance improvement for the CRC16 > > calculations done in read/write workloads using the T10 Type 1/2/3 > > guard field. For example, today with sequential write workloads (one > > thread/CPU of

Re: [PATCH] Performance Improvement in CRC16 Calculations.

2018-08-11 Thread Martin K. Petersen
Jeff, > This patch provides a performance improvement for the CRC16 > calculations done in read/write workloads using the T10 Type 1/2/3 > guard field. For example, today with sequential write workloads (one > thread/CPU of IO) we consume 100% of the CPU because of the CRC16 > computation bottl

Re: [RFC PATCH 0/7] A General Accelerator Framework, WarpDrive

2018-08-11 Thread Kenneth Lee
在 2018年08月10日 星期五 09:12 下午, Jean-Philippe Brucker 写道: Hi Kenneth, On 10/08/18 04:39, Kenneth Lee wrote: You can achieve everything you want to achieve with existing upstream solution. Re-inventing a whole new driver infrastructure should really be motivated with strong and obvious reasons.

Re: [PATCH] Performance Improvement in CRC16 Calculations.

2018-08-11 Thread Joe Perches
On Sat, 2018-08-11 at 02:04 -0700, Joe Perches wrote: > On Fri, 2018-08-10 at 22:39 -0400, Douglas Gilbert wrote: > > but below is a copy and paste of a table 27 from draft SBC-4 > > revision 15 in chapter 4.22.4.4 on page 87. > > The posted code returns the proper crc for each > CONFIG_CRYPTO_CRC

Re: [RFC PATCH 0/7] A General Accelerator Framework, WarpDrive

2018-08-11 Thread Kenneth Lee
在 2018年08月10日 星期五 10:32 下午, Jerome Glisse 写道: On Fri, Aug 10, 2018 at 11:39:13AM +0800, Kenneth Lee wrote: On Thu, Aug 09, 2018 at 10:46:13AM -0400, Jerome Glisse wrote: Date: Thu, 9 Aug 2018 10:46:13 -0400 From: Jerome Glisse To: Kenneth Lee CC: Kenneth Lee , "Tian, Kevin" , Alex Willia

Re: [PATCH] Performance Improvement in CRC16 Calculations.

2018-08-11 Thread Joe Perches
On Fri, 2018-08-10 at 22:39 -0400, Douglas Gilbert wrote: > but below is a copy and paste of a table 27 from draft SBC-4 > revision 15 in chapter 4.22.4.4 on page 87. The posted code returns the proper crc for each CONFIG_CRYPTO_CRCT10DIF_TABLE_SIZE value from 1 to 5 for these arrays.