From patchwork Thu Jan 16 10:38:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiubo Li X-Patchwork-Id: 11336487 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EF2DA138D for ; Thu, 16 Jan 2020 10:39:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CD40A2077B for ; Thu, 16 Jan 2020 10:39:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="BidOrOmt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726730AbgAPKjO (ORCPT ); Thu, 16 Jan 2020 05:39:14 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:43032 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726082AbgAPKjN (ORCPT ); Thu, 16 Jan 2020 05:39:13 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1579171152; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FwWSl4sCvP84eKqUEMakimGZrSQS3vrQnXTqGZoUbGU=; b=BidOrOmtvuSGjTCUIf4xkEZvYl53cNCrDsAyAJ9dCoUxpOAniyqHmCDE3Dz3AGvL6RQ2FT OeL85n7Ma7iELngu51qnSlifxY7BNZSnjypvD4wSSPLpAiTHSkYq+a1MS/IA0j8+T2R+Jc DlMbqyn77wc5gfCWOZqi3xA6fW5tm/Y= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-136-weL-xyAnOJqoHgfKM7jd7A-1; Thu, 16 Jan 2020 05:39:08 -0500 X-MC-Unique: weL-xyAnOJqoHgfKM7jd7A-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 7E892190D340; Thu, 16 Jan 2020 10:39:07 +0000 (UTC) Received: from localhost.localdomain (ovpn-12-49.pek2.redhat.com [10.72.12.49]) by smtp.corp.redhat.com (Postfix) with ESMTP id E0BF860C63; Thu, 16 Jan 2020 10:39:04 +0000 (UTC) From: xiubli@redhat.com To: jlayton@kernel.org, idryomov@gmail.com, zyan@redhat.com Cc: sage@redhat.com, pdonnell@redhat.com, ceph-devel@vger.kernel.org, Xiubo Li Subject: [PATCH v4 5/8] ceph: add global metadata perf metric support Date: Thu, 16 Jan 2020 05:38:27 -0500 Message-Id: <20200116103830.13591-6-xiubli@redhat.com> In-Reply-To: <20200116103830.13591-1-xiubli@redhat.com> References: <20200116103830.13591-1-xiubli@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Sender: ceph-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: ceph-devel@vger.kernel.org From: Xiubo Li item total sum_lat(us) avg_lat(us) ----------------------------------------------------- metadata 1288 24506000 19026 URL: https://tracker.ceph.com/issues/43215 Signed-off-by: Xiubo Li --- fs/ceph/debugfs.c | 8 ++++++++ fs/ceph/mds_client.c | 25 +++++++++++++++++++++++++ fs/ceph/mds_client.h | 6 ++++++ 3 files changed, 39 insertions(+) diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c index 3fdb15af0a83..df8c1cc685d9 100644 --- a/fs/ceph/debugfs.c +++ b/fs/ceph/debugfs.c @@ -150,6 +150,14 @@ static int metric_show(struct seq_file *s, void *p) seq_printf(s, "%-14s%-12lld%-16lld%lld\n", "write", total, sum / NSEC_PER_USEC, avg / NSEC_PER_USEC); + spin_lock(&mdsc->metric.metadata_lock); + total = atomic64_read(&mdsc->metric.total_metadatas), + sum = timespec64_to_ns(&mdsc->metric.metadata_latency_sum); + spin_unlock(&mdsc->metric.metadata_lock); + avg = total ? sum / total : 0; + seq_printf(s, "%-14s%-12lld%-16lld%lld\n", "metadata", + total, sum / NSEC_PER_USEC, avg / NSEC_PER_USEC); + seq_printf(s, "\n"); seq_printf(s, "item total miss hit\n"); seq_printf(s, "-------------------------------------------------\n"); diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 2569f9303c0c..409dcb7990aa 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -2903,6 +2903,11 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg) result = le32_to_cpu(head->result); + if (!result || result == -ENOENT) { + s64 latency = jiffies - req->r_started; + ceph_mdsc_update_metadata_latency(&mdsc->metric, latency); + } + /* * Handle an ESTALE * if we're not talking to the authority, send to them @@ -4128,6 +4133,22 @@ void ceph_mdsc_update_write_latency(struct ceph_client_metric *m, spin_unlock(&m->write_lock); } +void ceph_mdsc_update_metadata_latency(struct ceph_client_metric *m, + s64 latency) +{ + struct timespec64 ts; + + if (!m) + return; + + jiffies_to_timespec64(latency, &ts); + + spin_lock(&m->metadata_lock); + atomic64_inc(&m->total_metadatas); + m->metadata_latency_sum = timespec64_add(m->metadata_latency_sum, ts); + spin_unlock(&m->metadata_lock); +} + /* * delayed work -- periodically trim expired leases, renew caps with mds */ @@ -4232,6 +4253,10 @@ static int ceph_mdsc_metric_init(struct ceph_client_metric *metric) memset(&metric->write_latency_sum, 0, sizeof(struct timespec64)); atomic64_set(&metric->total_writes, 0); + spin_lock_init(&metric->metadata_lock); + memset(&metric->metadata_latency_sum, 0, sizeof(struct timespec64)); + atomic64_set(&metric->total_metadatas, 0); + return 0; } diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index 104b21e4b06c..60bac2b96577 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -374,6 +374,10 @@ struct ceph_client_metric { spinlock_t write_lock; atomic64_t total_writes; struct timespec64 write_latency_sum; + + spinlock_t metadata_lock; + atomic64_t total_metadatas; + struct timespec64 metadata_latency_sum; }; /* @@ -562,4 +566,6 @@ extern void ceph_mdsc_update_read_latency(struct ceph_client_metric *m, s64 latency); extern void ceph_mdsc_update_write_latency(struct ceph_client_metric *m, s64 latency); +extern void ceph_mdsc_update_metadata_latency(struct ceph_client_metric *m, + s64 latency); #endif