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Message-ID: <ZHWCPXKo2fFJmtlT@tassilo>
Date: Mon, 29 May 2023 21:57:33 -0700
From: Andi Kleen <ak@...ux.intel.com>
To: Ian Rogers <irogers@...gle.com>
Cc: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
"Masami Hiramatsu (Google)" <mhiramat@...nel.org>,
"Steven Rostedt (Google)" <rostedt@...dmis.org>,
Ross Zwisler <zwisler@...omium.org>,
Leo Yan <leo.yan@...aro.org>,
Tiezhu Yang <yangtiezhu@...ngson.cn>,
Yang Jihong <yangjihong1@...wei.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Ravi Bangoria <ravi.bangoria@....com>,
Sean Christopherson <seanjc@...gle.com>,
K Prateek Nayak <kprateek.nayak@....com>,
Paolo Bonzini <pbonzini@...hat.com>,
linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v2 00/16] Address some perf memory/data size issues
FWIW I think the whole patchkit could be replaced with a one liner
that disables THP for the BSS segment. I suspect that would be roughly
equivalent for memory consumption because 4K pages that are never
touched would never be allocated.
-Andi
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