From patchwork Thu Feb 4 14:01:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 12067387 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C09AC433E9 for ; Thu, 4 Feb 2021 14:03:31 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0AC5064F90 for ; Thu, 4 Feb 2021 14:03:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0AC5064F90 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34892 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l7fEI-0005uC-3k for qemu-devel@archiver.kernel.org; Thu, 04 Feb 2021 09:03:30 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:50764) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l7fCb-0003cf-R1 for qemu-devel@nongnu.org; Thu, 04 Feb 2021 09:01:45 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:56437) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l7fCZ-00006e-TZ for qemu-devel@nongnu.org; Thu, 04 Feb 2021 09:01:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1612447302; 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=rLxYNuVKbLaHExy22fumUpWboafTmTjNstltLuznAVM=; b=UXZG6qFutqMpRXjqflKzGcKf7pLIazzHmLmigHUo+SBSpnq7IaWlwW/zlSK1nDk02esK88 oePS45oQ/TTXCG0z+TYZd7t90zfXWw5WZMk5yXnCeKdSPAnLsCMnjFP5cnXxBagwecNdu1 0ZKNSrrDuvI+EvN+YgIoaEvCkOnXqec= 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-316-vcKOnUJkN1e2l_bEglbAlQ-1; Thu, 04 Feb 2021 09:01:40 -0500 X-MC-Unique: vcKOnUJkN1e2l_bEglbAlQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E05A0100C617; Thu, 4 Feb 2021 14:01:39 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-115-51.ams2.redhat.com [10.36.115.51]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B05235B698; Thu, 4 Feb 2021 14:01:39 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 826051132CB1; Thu, 4 Feb 2021 15:01:36 +0100 (CET) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PULL 8/9] qmp: Add more tracepoints Date: Thu, 4 Feb 2021 15:01:35 +0100 Message-Id: <20210204140136.2769065-9-armbru@redhat.com> In-Reply-To: <20210204140136.2769065-1-armbru@redhat.com> References: <20210204140136.2769065-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=armbru@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.351, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , peter.maydell@linaro.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add tracepoints for in-band request enqueue and dequeue, processing of queued in-band errors, and responses. Signed-off-by: Markus Armbruster Message-Id: <20210201161504.1976989-3-armbru@redhat.com> Reviewed-by: Kevin Wolf --- monitor/qmp.c | 7 +++++++ monitor/trace-events | 4 ++++ 2 files changed, 11 insertions(+) diff --git a/monitor/qmp.c b/monitor/qmp.c index f6a1e7783b..e37b047c8a 100644 --- a/monitor/qmp.c +++ b/monitor/qmp.c @@ -113,6 +113,7 @@ void qmp_send_response(MonitorQMP *mon, const QDict *rsp) json = qobject_to_json_pretty(data, mon->pretty); assert(json != NULL); + trace_monitor_qmp_respond(mon, json->str); g_string_append_c(json, '\n'); monitor_puts(&mon->common, json->str); @@ -251,6 +252,9 @@ void coroutine_fn monitor_qmp_dispatcher_co(void *data) } } + trace_monitor_qmp_in_band_dequeue(req_obj, + req_obj->mon->qmp_requests->length); + if (qatomic_xchg(&qmp_dispatcher_co_busy, true) == true) { /* * Someone rescheduled us (probably because a new requests @@ -287,6 +291,7 @@ void coroutine_fn monitor_qmp_dispatcher_co(void *data) monitor_qmp_dispatch(mon, req_obj->req); } else { assert(req_obj->err); + trace_monitor_qmp_err_in_band(error_get_pretty(req_obj->err)); rsp = qmp_error_response(req_obj->err); req_obj->err = NULL; monitor_qmp_respond(mon, rsp); @@ -364,6 +369,8 @@ static void handle_qmp_command(void *opaque, QObject *req, Error *err) * handled in time order. Ownership for req_obj, req, * etc. will be delivered to the handler side. */ + trace_monitor_qmp_in_band_enqueue(req_obj, mon, + mon->qmp_requests->length); assert(mon->qmp_requests->length < QMP_REQ_QUEUE_LEN_MAX); g_queue_push_tail(mon->qmp_requests, req_obj); qemu_mutex_unlock(&mon->qmp_queue_lock); diff --git a/monitor/trace-events b/monitor/trace-events index 0365ac4d99..348dcfca9b 100644 --- a/monitor/trace-events +++ b/monitor/trace-events @@ -10,6 +10,10 @@ monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event= monitor_suspend(void *ptr, int cnt) "mon %p: %d" # qmp.c +monitor_qmp_in_band_enqueue(void *req, void *mon, unsigned len) "%p mon %p len %u" +monitor_qmp_in_band_dequeue(void *req, unsigned len) "%p len %u" monitor_qmp_cmd_in_band(const char *id) "%s" +monitor_qmp_err_in_band(const char *desc) "%s" monitor_qmp_cmd_out_of_band(const char *id) "%s" +monitor_qmp_respond(void *mon, const char *json) "mon %p resp: %s" handle_qmp_command(void *mon, const char *req) "mon %p req: %s"