Re: [dpdk-dev] [PATCH] config: set cache line as 128B in the generic arm64 config

2017-04-30 Thread Thomas Monjalon
28/04/2017 04:14, Jianbo Liu: > On 27 April 2017 at 00:29, Jerin Jacob wrote: > > armv8 implementations may have 64B or 128B cache line. > > Setting to the maximum available cache line size in generic config to > > address minimum DMA alignment across all arm64 implementations. > > > > Increasing

Re: [dpdk-dev] [PATCH] config: set cache line as 128B in the generic arm64 config

2017-04-27 Thread Jerin Jacob
-Original Message- > Date: Fri, 28 Apr 2017 10:14:11 +0800 > From: Jianbo Liu > To: Jerin Jacob > Cc: dev@dpdk.org, tho...@monjalon.net, Hemant Agrawal > , christian.ehrha...@canonical.com > Subject: Re: [dpdk-dev] [PATCH] config: set cache line as 128B in the >

Re: [dpdk-dev] [PATCH] config: set cache line as 128B in the generic arm64 config

2017-04-27 Thread santosh
Hi Jerin, On Wednesday 26 April 2017 09:59 PM, Jerin Jacob wrote: > armv8 implementations may have 64B or 128B cache line. > Setting to the maximum available cache line size in generic config to > address minimum DMA alignment across all arm64 implementations. > > Increasing the cacheline size ha

Re: [dpdk-dev] [PATCH] config: set cache line as 128B in the generic arm64 config

2017-04-27 Thread Jianbo Liu
On 27 April 2017 at 00:29, Jerin Jacob wrote: > armv8 implementations may have 64B or 128B cache line. > Setting to the maximum available cache line size in generic config to > address minimum DMA alignment across all arm64 implementations. > > Increasing the cacheline size has no negative impact

[dpdk-dev] [PATCH] config: set cache line as 128B in the generic arm64 config

2017-04-26 Thread Jerin Jacob
armv8 implementations may have 64B or 128B cache line. Setting to the maximum available cache line size in generic config to address minimum DMA alignment across all arm64 implementations. Increasing the cacheline size has no negative impact to cache invalidation on systems with a smaller cache li