On Thu, Oct 15, 2020 at 4:41 PM Maslekar, Omkar
wrote:
> >> diff --git a/lib/librte_eal/arm/include/rte_prefetch_32.h
> >> b/lib/librte_eal/arm/include/rte_prefetch_32.h
> >> index e53420a..28b3d48 100644
> >> --- a/lib/librte_eal/arm/include/rte_prefetch_32.h
> >> +++ b/lib/librte_eal/arm/in
;
>Honnappa Nagarahalli
>Subject: Re: [dpdk-dev] [PATCH v7] eal: add cache-line demote support
>
>Repeating my questions:
>- would there be a point in hinting at where the "demoted" line goes?
Yes, it is worth mentioning a point that demoted line goes to last shared lev
Repeating my questions:
- would there be a point in hinting at where the "demoted" line goes?
- is this instruction available on all x86 CPUs?
See comments:
On Tue, Oct 13, 2020 at 6:47 PM Omkar Maslekar wrote:
> diff --git a/app/test/test_prefetch.c b/app/test/test_prefetch.c
> index 41f219a..
> -Original Message-
> From: Omkar Maslekar
> Sent: Tuesday, October 13, 2020 5:43 PM
> To: dev@dpdk.org
> Cc: bruce.richard...@intel.com; ciara.lof...@intel.com;
> omkar.masle...@intel.com; d...@linux.vnet.ibm.com; jer...@marvell.com;
> Ruifeng Wang ; Honnappa Nagarahalli
>
> Subject:
We are including this in rte_prefetch.h since it is the most closely
related code location.rte_cldemte is similar to a prefetch hint -in reverse
Omkar Maslekar (1):
eal: add cache-line demote support
app/test/test_prefetch.c | 4
doc/guides/rel_notes/release_20_11.rs
rte_cldemote is similar to a prefetch hint - in reverse. cldemote(addr)
enables software to hint to hardware that line is likely to be shared.
Useful in core-to-core communications where cache-line is likely to be
shared. ARM and PPC implementation is provided with NOP and can be added
if any equiv
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