{"id":2132473,"url":"http://patchwork.ozlabs.org/api/patches/2132473/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/b3abc13e13eb893f98251c2eb11871a85495a635.1756973061.git.massimiliano.pellizzer@canonical.com/","project":{"id":15,"url":"http://patchwork.ozlabs.org/api/projects/15/?format=json","name":"Ubuntu Kernel","link_name":"ubuntu-kernel","list_id":"kernel-team.lists.ubuntu.com","list_email":"kernel-team@lists.ubuntu.com","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<b3abc13e13eb893f98251c2eb11871a85495a635.1756973061.git.massimiliano.pellizzer@canonical.com>","list_archive_url":null,"date":"2025-09-04T08:11:31","name":"[SRU,J,06/12] perf vendor events s390: Add cache metrics for z16","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"613226f94bf298a26488f45fc718965bfd5d6df0","submitter":{"id":89057,"url":"http://patchwork.ozlabs.org/api/people/89057/?format=json","name":"Massimiliano Pellizzer","email":"massimiliano.pellizzer@canonical.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/b3abc13e13eb893f98251c2eb11871a85495a635.1756973061.git.massimiliano.pellizzer@canonical.com/mbox/","series":[{"id":472179,"url":"http://patchwork.ozlabs.org/api/series/472179/?format=json","web_url":"http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=472179","date":"2025-09-04T08:11:25","name":"CPU-MF Counters for new IBM Z hardware - perf part (LP: #2103415)","version":1,"mbox":"http://patchwork.ozlabs.org/series/472179/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2132473/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2132473/checks/","tags":{},"related":[],"headers":{"Return-Path":"<kernel-team-bounces@lists.ubuntu.com>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":"legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; helo=lists.ubuntu.com;\n envelope-from=kernel-team-bounces@lists.ubuntu.com;\n receiver=patchwork.ozlabs.org)","Received":["from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4cHXKg4Lxtz1xyS\n\tfor <incoming@patchwork.ozlabs.org>; Thu,  4 Sep 2025 18:13:11 +1000 (AEST)","from localhost ([127.0.0.1] helo=lists.ubuntu.com)\n\tby lists.ubuntu.com with esmtp (Exim 4.86_2)\n\t(envelope-from <kernel-team-bounces@lists.ubuntu.com>)\n\tid 1uu55c-0001oh-Th; Thu, 04 Sep 2025 08:13:04 +0000","from smtp-relay-internal-0.internal ([10.131.114.225]\n helo=smtp-relay-internal-0.canonical.com)\n by lists.ubuntu.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.86_2) (envelope-from <massimiliano.pellizzer@canonical.com>)\n id 1uu55Z-0001bu-Bu\n for kernel-team@lists.ubuntu.com; Thu, 04 Sep 2025 08:13:01 +0000","from mail-ej1-f72.google.com (mail-ej1-f72.google.com\n [209.85.218.72])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by smtp-relay-internal-0.canonical.com (Postfix) with ESMTPS id BDEAE3F7BC\n for <kernel-team@lists.ubuntu.com>; Thu,  4 Sep 2025 08:12:59 +0000 (UTC)","by mail-ej1-f72.google.com with SMTP id\n a640c23a62f3a-b042eb3ac03so53985366b.2\n for <kernel-team@lists.ubuntu.com>; Thu, 04 Sep 2025 01:12:59 -0700 (PDT)","from framework-canonical.lan\n (net-31-156-181-205.cust.vodafonedsl.it. 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charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" <kernel-team-bounces@lists.ubuntu.com>"},"content":"From: Thomas Richter <tmricht@linux.ibm.com>\n\nBugLink: https://bugs.launchpad.net/bugs/2103415\n\nAdd metrics for s390 z16\n\n- Percentage sourced from Level 2 cache\n- Percentage sourced from Level 3 on same chip cache\n- Percentage sourced from Level 4 Local cache on same book\n- Percentage sourced from Level 4 Remote cache on different book\n- Percentage sourced from memory\n\nFor details about the formulas see this documentation:\nhttps://www.ibm.com/support/pages/system/files/inline-files/CPU%20MF%20Formulas%20including%20z16%20-%20May%202022_1.pdf\n\nOutput after:\n\n  # ./perf stat -M l4rp -- dd if=/dev/zero of=/dev/null bs=10M count=10K\n  .... dd output deleted\n\n  Performance counter stats for 'dd if=/dev/zero of=/dev/null bs=10M count=10K':\n\n                  0      IDCW_OFF_DRAWER_CHIP_HIT         #     0.00 l4rp\n            431,866      L1I_DIR_WRITES\n              2,395      IDCW_OFF_DRAWER_IV\n                  0      ICW_OFF_DRAWER\n                  0      IDCW_OFF_DRAWER_DRAWER_HIT\n              1,437      DCW_OFF_DRAWER\n        425,960,793      L1D_DIR_WRITES\n\n       12.165030699 seconds time elapsed\n\n        0.001037000 seconds user\n       12.162140000 seconds sys\n  #\n\nSigned-off-by: Thomas Richter <tmricht@linux.ibm.com>\nAcked-by: Ian Rogers <irogers@google.com>\nAcked-By: Sumanth Korikkar <sumanthk@linux.ibm.com>\nCc: Heiko Carstens <hca@linux.ibm.com>\nCc: Sven Schnelle <svens@linux.ibm.com>\nCc: Vasily Gorbik <gor@linux.ibm.com>\nLink: https://lore.kernel.org/r/20230313080201.2440201-1-tmricht@linux.ibm.com\nSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>\n(cherry picked from commit f8a6cea4839bc8c76804b301dbb5522a6cacf6d5)\nSigned-off-by: Massimiliano Pellizzer <massimiliano.pellizzer@canonical.com>\n---\n .../arch/s390/cf_z16/transaction.json         | 25 +++++++++++++++++++\n 1 file changed, 25 insertions(+)","diff":"diff --git a/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json b/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json\nindex 86bf83b4504e..dde0735a7d22 100644\n--- a/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json\n+++ b/tools/perf/pmu-events/arch/s390/cf_z16/transaction.json\n@@ -18,5 +18,30 @@\n     \"BriefDescription\": \"Level One Miss per 100 Instructions\",\n     \"MetricName\": \"l1mp\",\n     \"MetricExpr\": \"((L1I_DIR_WRITES + L1D_DIR_WRITES) / INSTRUCTIONS) * 100\"\n+  },\n+  {\n+    \"BriefDescription\": \"Percentage sourced from Level 2 cache\",\n+    \"MetricName\": \"l2p\",\n+    \"MetricExpr\": \"((DCW_REQ + DCW_REQ_IV + ICW_REQ + ICW_REQ_IV) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100\"\n+  },\n+  {\n+    \"BriefDescription\": \"Percentage sourced from Level 3 on same chip cache\",\n+    \"MetricName\": \"l3p\",\n+    \"MetricExpr\": \"((DCW_REQ_CHIP_HIT + DCW_ON_CHIP + DCW_ON_CHIP_IV + DCW_ON_CHIP_CHIP_HIT + ICW_REQ_CHIP_HIT + ICW_ON_CHIP + ICW_ON_CHIP_IV + ICW_ON_CHIP_CHIP_HIT) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100\"\n+  },\n+  {\n+    \"BriefDescription\": \"Percentage sourced from Level 4 Local cache on same book\",\n+    \"MetricName\": \"l4lp\",\n+    \"MetricExpr\": \"((DCW_REQ_DRAWER_HIT + DCW_ON_CHIP_DRAWER_HIT + DCW_ON_MODULE + DCW_ON_DRAWER + IDCW_ON_MODULE_IV + IDCW_ON_MODULE_CHIP_HIT + IDCW_ON_MODULE_DRAWER_HIT + IDCW_ON_DRAWER_IV + IDCW_ON_DRAWER_CHIP_HIT + IDCW_ON_DRAWER_DRAWER_HIT + ICW_REQ_DRAWER_HIT + ICW_ON_CHIP_DRAWER_HIT + ICW_ON_MODULE + ICW_ON_DRAWER) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100\"\n+  },\n+  {\n+    \"BriefDescription\": \"Percentage sourced from Level 4 Remote cache on different book\",\n+    \"MetricName\": \"l4rp\",\n+    \"MetricExpr\": \"((DCW_OFF_DRAWER + IDCW_OFF_DRAWER_IV + IDCW_OFF_DRAWER_CHIP_HIT + IDCW_OFF_DRAWER_DRAWER_HIT + ICW_OFF_DRAWER) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100\"\n+  },\n+  {\n+    \"BriefDescription\": \"Percentage sourced from memory\",\n+    \"MetricName\": \"memp\",\n+    \"MetricExpr\": \"((DCW_ON_CHIP_MEMORY + DCW_ON_MODULE_MEMORY + DCW_ON_DRAWER_MEMORY + DCW_OFF_DRAWER_MEMORY + ICW_ON_CHIP_MEMORY + ICW_ON_MODULE_MEMORY + ICW_ON_DRAWER_MEMORY + ICW_OFF_DRAWER_MEMORY) / (L1I_DIR_WRITES + L1D_DIR_WRITES)) * 100\"\n   }\n ]\n","prefixes":["SRU","J","06/12"]}