Re: [dpdk-dev] [PATCH v4 1/5] ring: add 64-bit headtail structure

2019-01-29 Thread Eads, Gage
> -Original Message- > From: Ola Liljedahl [mailto:ola.liljed...@arm.com] > Sent: Tuesday, January 29, 2019 6:57 AM > To: Eads, Gage ; dev@dpdk.org > Cc: jer...@marvell.com; mcze...@marvell.com; nd ; > Richardson, Bruce ; Ananyev, Konstantin > ; step...@networkplumber.org; > olivier.m...@

Re: [dpdk-dev] [PATCH v4 1/5] ring: add 64-bit headtail structure

2019-01-29 Thread Ola Liljedahl
On Mon, 2019-01-28 at 12:14 -0600, Gage Eads wrote: > 64-bit head and tail index widths greatly increases the time it takes for > them to wrap-around (with current CPU speeds, it won't happen within the > author's lifetime). This is fundamental to avoiding the ABA problem -- in > which a thread mis