From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA45732E73F for ; Thu, 30 Oct 2025 15:22:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761837779; cv=none; b=Z9/MjX/EPD+F7EfoX/N3AnpzHHy3nNeUS3MJ+6o6mv7x0+2raquO3IIAeil1VVffGpokT7MdgMsb1+xOdMhD+kA1VlXSx5fJrb5nYfpByPjz+OY7zs6IuFTM1GrWJG5VWoQQFL3ff832Ks2rkD3xnzP4fPHn9wAFDf2Uddoh3j8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761837779; c=relaxed/simple; bh=fm3m7nE7zVH3DatzDl8KJzZfqVDvtAenS6uxz+fC6sc=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=herTQpIR0LJVVhZnVDa9cH4xGZp8MZo+8ou7fVfkINdbggsFRycmyC+Up4TkNLQlkM9dno9nuj/Y9Xf7pa5gK93N6d6cZimAu6COl99pZpzWrW1dnBVQlq1sJ3775+1mpsyG7SlbSrI0uWdm6fYL5qdWzBzX2posVXXs51z43LQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=Kt+L8ltg; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Kt+L8ltg" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1761837776; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fm3m7nE7zVH3DatzDl8KJzZfqVDvtAenS6uxz+fC6sc=; b=Kt+L8ltgxK/jESZlnPVUV3K7tFKWVotGdDA8Njw8djy+Iz4kswpKY9uSnFjIQzreTU2NzT MeIhnxelw4ajGJSdSWE8EuiHm8Q5RcgNIbs2TOyqhwmEcODtzoUI3NDk9JDEMhaIQwIPNe H42VtP576NVzRFdRrSziS2Yd4KHFJdg= Received: from mail-lj1-f199.google.com (mail-lj1-f199.google.com [209.85.208.199]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-491-8NDpBcV5NT-aTQlibgpb9A-1; Thu, 30 Oct 2025 11:22:54 -0400 X-MC-Unique: 8NDpBcV5NT-aTQlibgpb9A-1 X-Mimecast-MFC-AGG-ID: 8NDpBcV5NT-aTQlibgpb9A_1761837773 Received: by mail-lj1-f199.google.com with SMTP id 38308e7fff4ca-378cdf5e305so6893651fa.2 for ; Thu, 30 Oct 2025 08:22:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761837772; x=1762442572; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=fm3m7nE7zVH3DatzDl8KJzZfqVDvtAenS6uxz+fC6sc=; b=nl473ZjdxuqC2yTHZT/0Fd4f3d3XxW3V1yOC6z6TGHfXJHjYrg3iWYKwvuONnSiNih 7ctdtbSUbVOVU1B8svAZ3SCqOJqr8tB03YtyOvb1/wA1yW6xjnXlCNTOzwXdcTQZvuJo yN7sK8bSnz4XIWx2xkwpJCHINScXVcJZU4pmFoF0VKhfMQaWK/F65sBy17T6bBVZ476J r8cdGBqvvQlmglDdXXEC7wSGq51pb5ufBIwtAty3q0RfEUjhMKMbNpYNL2FzDVP1meJb G2TlSbrf8x95/IszWVSTsmsc+R1zBeD0a8N9DdMzkhlgFoyuyDy5Kmue3oJzFqCEDSt4 M0ng== X-Forwarded-Encrypted: i=1; AJvYcCWf096uzULFfeS0Uo9kqbKCaHm+vOwh/BmX1ScekpAqQY0NTYEfh2NgIBlh6soU/6KTnIttaQnnyCnGnybWY01L@vger.kernel.org X-Gm-Message-State: AOJu0Yy6nQIsomncScXsXYrs7GaKAD6tyfMeLYITUuSOr6PPrOjZbVtU 3BPijUwo48tq2XNH75TJ6zK2RsUEmy+61cVHeGT7yN+7AHchp8yB0O8rR5o3CCsRHwxPfVNFrmf SV53ORWws8oT6eqd0z93pZueItLlZ+LDykCwyb3+PDn1TBzMbAYQHsLZ+ehb0pyO/A0TapooIMx Pmu3f9U5lPqpaoLZXTVrBathcPlPh4cPHMoADm5lwCjPtphw== X-Gm-Gg: ASbGnctl4Wm8B0NQ3sV5KzJOoL8InBFUZjvCxgwcfKp+fs5Qjtrs0Unbc+vwVkZGF/3 bKh5S3axI33SZLOc7qEhX5zV8Xds3+pS4UBFjHzeo6eZxFuo6Zl82h3Tl9aklEO3ge3MMsXXvWY 5biv6Pte/BZl62l65bLYHisx9vDxl3q/BoDYntPGr3qsaTeiV32UTjuw== X-Received: by 2002:ac2:4e0b:0:b0:572:1f0b:5ef3 with SMTP id 2adb3069b0e04-5941d5002bdmr58085e87.11.1761837772483; Thu, 30 Oct 2025 08:22:52 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEBAVQ2FwAUWRuP2k2ydeZwG6VY23POJCaHckmnER7xw0TAls9V6Uv3+gye1bE+UrCmOpzgt/fZEFoLEn5Y+ww= X-Received: by 2002:ac2:4e0b:0:b0:572:1f0b:5ef3 with SMTP id 2adb3069b0e04-5941d5002bdmr58062e87.11.1761837772060; Thu, 30 Oct 2025 08:22:52 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20251023132406.78359-2-ashelat@redhat.com> <5b02372a-f0be-4d3a-a875-c5ea65f2bafe@linux.ibm.com> <2e756e75-7dc9-4838-8651-ca1a0f056966@linux.ibm.com> <6b1d742e-ae54-4c24-a4c0-11565729cb90@linaro.org> In-Reply-To: <6b1d742e-ae54-4c24-a4c0-11565729cb90@linaro.org> From: Anubhav Shelat Date: Thu, 30 Oct 2025 15:22:41 +0000 X-Gm-Features: AWmQ_blaF_xHYQOTIvPmkCsJHRkEnDghL9d7TS4WoIuqQygozPWrKgB8gpMan-c Message-ID: Subject: Re: [PATCH] Revert "perf test: Allow tolerance for leader sampling test" To: James Clark Cc: Thomas Richter , mpetlan@redhat.com, acme@kernel.org, namhyung@kernel.org, irogers@google.com, linux-perf-users@vger.kernel.org, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, adrian.hunter@intel.com, kan.liang@linux.intel.com, dapeng1.mi@linux.intel.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, Oct 30, 2025 at 2:19=E2=80=AFPM James Clark wrote: > Isn't that the same throttling bug? A difference in cycle counts. No, because nearly every sample has the difference. The tolerance setting doesn't matter if every sample is mismatched. I don't think this is the throttling bug. It doesn't match the big description in https://lore.kernel.org/lkml/20250520181644.2673067-2-kan.liang@linux.intel= .com/. > I'm not really sure what "v6.12 up to date with v6.16" means. The RHEL kernel has a different naming convention. The -145 refers to the 145th iteration of the RHEL kernel that started from 6.12 so 6.12.0-145 is relatively new, but I'll build from a new kernel and test again. Anubhav