From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id E158BC433EF for ; Mon, 23 May 2022 15:18:04 +0000 (UTC) Received: from localhost ([::1]:55070 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nt9oq-0002cl-1B for qemu-devel@archiver.kernel.org; Mon, 23 May 2022 11:18:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55034) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nt9ek-0005pK-Ia for qemu-devel@nongnu.org; Mon, 23 May 2022 11:07:38 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:45722) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nt9ei-00009i-J5 for qemu-devel@nongnu.org; Mon, 23 May 2022 11:07:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1653318456; 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=ELvj6VgD11o8u/IhmceJwp3wsrjN9bVDxMSOiBdpaLs=; b=eR2hH0UYdPNx5BTm6X3nhE8tzp1cn0aUZhmy+nxWW2z9zJgnVI7m67mpgJtkvhkoBWF4p2 ulG8Ml1X67Bd+Gjj9DJdR1VSegeb+PBKZBCl9haxyxAja3PwJnMedInbHd0XCTSe7XJsMi apCXTfIc2EccnNTlmzI8MUsOV0qsjLM= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-641-Kx3xofe5OnaeDyDVUgxPrQ-1; Mon, 23 May 2022 11:07:34 -0400 X-MC-Unique: Kx3xofe5OnaeDyDVUgxPrQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 59C9729ABA2B; Mon, 23 May 2022 15:07:34 +0000 (UTC) Received: from avogadro.redhat.com (unknown [10.39.195.170]) by smtp.corp.redhat.com (Postfix) with ESMTP id 82AFA40D1B98; Mon, 23 May 2022 15:07:33 +0000 (UTC) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: armbru@redhat.com, Mark Kanda Subject: [PATCH 8/8] hmp: add filtering of statistics by name Date: Mon, 23 May 2022 17:07:22 +0200 Message-Id: <20220523150722.349700-8-pbonzini@redhat.com> In-Reply-To: <20220523150722.349700-1-pbonzini@redhat.com> References: <20220523150509.349412-1-pbonzini@redhat.com> <20220523150722.349700-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Allow the user to request only a specific subset of statistics. This can be useful when working on a feature or optimization that is known to affect that statistic. Extracted from a patch by Mark Kanda. Signed-off-by: Paolo Bonzini --- hmp-commands-info.hx | 8 ++++---- monitor/hmp-cmds.c | 35 +++++++++++++++++++++++++---------- 2 files changed, 29 insertions(+), 14 deletions(-) diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx index d4d8a1e618..767aafd1ea 100644 --- a/hmp-commands-info.hx +++ b/hmp-commands-info.hx @@ -897,10 +897,10 @@ ERST { .name = "stats", - .args_type = "target:s,provider:s?", - .params = "target [provider]", - .help = "show statistics for the given target (vm or vcpu); optionally filter by " - "provider", + .args_type = "target:s,names:s?,provider:s?", + .params = "target [names] [provider]", + .help = "show statistics for the given target (vm or vcpu); optionally filter by" + "name (comma-separated list, or * for all) and provider", .cmd = hmp_info_stats, }, diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 02a455090d..7fe8a9cdc8 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -2356,10 +2356,12 @@ static void print_stats_results(Monitor *mon, StatsTarget target, } /* Create the StatsFilter that is needed for an "info stats" invocation. */ -static StatsFilter *stats_filter(StatsTarget target, int cpu_index, - StatsProvider provider) +static StatsFilter *stats_filter(StatsTarget target, const char *names, + int cpu_index, StatsProvider provider) { StatsFilter *filter = g_malloc0(sizeof(*filter)); + StatsProvider provider_idx; + StatsRequestList *request_list = NULL; filter->target = target; switch (target) { @@ -2380,15 +2382,27 @@ static StatsFilter *stats_filter(StatsTarget target, int cpu_index, break; } - if (provider == STATS_PROVIDER__MAX) { + if (!names && provider == STATS_PROVIDER__MAX) { return filter; } - /* "info stats" can only query either one or all the providers. */ - StatsRequest *request = g_new0(StatsRequest, 1); - request->provider = provider; - StatsRequestList *request_list = g_new0(StatsRequestList, 1); - QAPI_LIST_PREPEND(request_list, request); + /* + * "info stats" can only query either one or all the providers. Querying + * by name, but not by provider, requires the creation of one filter per + * provider. + */ + for (provider_idx = 0; provider_idx < STATS_PROVIDER__MAX; provider_idx++) { + if (provider == STATS_PROVIDER__MAX || provider == provider_idx) { + StatsRequest *request = g_new0(StatsRequest, 1); + request->provider = provider_idx; + if (names && !g_str_equal(names, "*")) { + request->has_names = true; + request->names = strList_from_comma_list(names); + } + QAPI_LIST_PREPEND(request_list, request); + } + } + filter->has_providers = true; filter->providers = request_list; return filter; @@ -2398,6 +2412,7 @@ void hmp_info_stats(Monitor *mon, const QDict *qdict) { const char *target_str = qdict_get_str(qdict, "target"); const char *provider_str = qdict_get_try_str(qdict, "provider"); + const char *names = qdict_get_try_str(qdict, "names"); StatsProvider provider = STATS_PROVIDER__MAX; StatsTarget target; @@ -2428,11 +2443,11 @@ void hmp_info_stats(Monitor *mon, const QDict *qdict) switch (target) { case STATS_TARGET_VM: - filter = stats_filter(target, -1, provider); + filter = stats_filter(target, names, -1, provider); break; case STATS_TARGET_VCPU: {} int cpu_index = monitor_get_cpu_index(mon); - filter = stats_filter(target, cpu_index, provider); + filter = stats_filter(target, names, cpu_index, provider); break; default: abort(); -- 2.36.0