* Re: Re: [PATCH] perf/x86/intel/bts: allocate bts_ctx only if necessary
@ 2024-10-30 7:50 Li,Rongqing
0 siblings, 0 replies; only message in thread
From: Li,Rongqing @ 2024-10-30 7:50 UTC (permalink / raw)
To: Alexander Shishkin, peterz@infradead.org, mingo@redhat.com,
acme@kernel.org, namhyung@kernel.org, mark.rutland@arm.com,
jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com,
kan.liang@linux.intel.com, tglx@linutronix.de, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
zhiquan1.li@intel.com
> > Avoid unnecessary per-CPU memory allocation on unsupported CPUs, this
> > can save 12K memory for every CPU
>
> Looks reasonable, but have you tested it? This driver is in serious danger of
> bitrot ever since KPTI. It might save even more if we simply remove the whole
> thing.
>
I fine to remove it, Could you send a patch to remove it
Thank
-Li
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2024-10-30 7:50 Re: [PATCH] perf/x86/intel/bts: allocate bts_ctx only if necessary Li,Rongqing
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