From: Andi Kleen <ak@linux.intel.com>
To: Leo Yan <leo.yan@linaro.org>, Ali Saidi <alisaidi@amazon.com>
Cc: kan.liang@linux.intel.com, Nick.Forrington@arm.com,
acme@kernel.org, alexander.shishkin@linux.intel.com,
andrew.kilroy@arm.com, benh@kernel.crashing.org,
german.gomez@arm.com, james.clark@arm.com, john.garry@huawei.com,
jolsa@kernel.org, kjain@linux.ibm.com, lihuafei1@huawei.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
mark.rutland@arm.com, mathieu.poirier@linaro.org,
mingo@redhat.com, namhyung@kernel.org, peterz@infradead.org,
will@kernel.org
Subject: Re: [PATCH v5 2/5] perf: Add SNOOP_PEER flag to perf mem data struct
Date: Sat, 23 Apr 2022 05:53:28 -0700 [thread overview]
Message-ID: <8e09af67-a416-4ead-b406-6c8b998de344@linux.intel.com> (raw)
In-Reply-To: <20220423063805.GA559531@leoy-ThinkPad-X240s>
> Except SNOOPX_FWD means a no modified cache snooping, it also means it's
> a cache conherency from *remote* socket. This is quite different from we
> define SNOOPX_PEER, which only snoop from peer CPU or clusters.
>
> If no objection, I prefer we could keep the new snoop type SNOOPX_PEER,
> this would be easier for us to distinguish the semantics and support the
> statistics for SNOOPX_FWD and SNOOPX_PEER separately.
>
> I overlooked the flag SNOOPX_FWD, thanks a lot for Kan's reminding.
Yes seems better to keep using a separate flag if they don't exactly match.
It's not that we're short on flags anyways.
-Andi
next prev parent reply other threads:[~2022-04-23 12:53 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-08 19:53 [PATCH v4 0/4] perf: arm-spe: Decode SPE source and use for perf c2c Ali Saidi
2022-04-08 19:53 ` [PATCH v5 1/5] tools: arm64: Import cputype.h Ali Saidi
2022-04-18 14:57 ` Leo Yan
2022-04-08 19:53 ` [PATCH v5 2/5] perf: Add SNOOP_PEER flag to perf mem data struct Ali Saidi
2022-04-20 8:20 ` Leo Yan
2022-04-20 18:43 ` Liang, Kan
2022-04-22 18:49 ` Ali Saidi
2022-04-22 21:08 ` Liang, Kan
2022-04-22 21:22 ` Ali Saidi
2022-04-23 6:38 ` Leo Yan
2022-04-23 12:53 ` Andi Kleen [this message]
2022-04-24 11:43 ` Leo Yan
2022-04-25 17:01 ` Liang, Kan
2022-04-27 16:19 ` Leo Yan
2022-04-27 19:29 ` Liang, Kan
2022-04-29 9:28 ` Leo Yan
2022-04-08 19:53 ` [PATCH v5 3/5] perf tools: sync addition of PERF_MEM_SNOOPX_PEER Ali Saidi
2022-04-11 10:26 ` German Gomez
2022-04-11 14:35 ` German Gomez
2022-04-20 8:23 ` Leo Yan
2022-04-08 19:53 ` [PATCH v5 4/5] perf arm-spe: Use SPE data source for neoverse cores Ali Saidi
2022-04-20 8:30 ` Leo Yan
2022-04-20 8:42 ` Leo Yan
2022-04-08 19:53 ` [PATCH v5 5/5] perf mem: Support mem_lvl_num in c2c command Ali Saidi
2022-04-11 10:04 ` German Gomez
2022-04-20 8:48 ` Leo Yan
2022-04-20 16:47 ` Arnaldo Carvalho de Melo
2022-04-20 19:02 ` Liang, Kan
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