From patchwork Wed Jun 12 14:42:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Xu X-Patchwork-Id: 1946991 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=Dufqvcul; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VzpFg1ZTpz20KL for ; Thu, 13 Jun 2024 00:43:51 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sHPBU-00087i-QG; Wed, 12 Jun 2024 10:42:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sHPBT-000879-4T for qemu-devel@nongnu.org; Wed, 12 Jun 2024 10:42:43 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sHPBR-0002nV-Ev for qemu-devel@nongnu.org; Wed, 12 Jun 2024 10:42:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718203360; 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=EhSChAN7rRoGGaUSPSWCzV7QQQImNhxehyAptMysuXo=; b=DufqvculMUpqGcNTGtk3dPs0e3tfoGiVoan8XqEQM9UKa6LHaWzA5VyUIK+xwPBKiyZVsB ccFygWb8DSCFBKDbIpkq/HHNRrsiaC5nKeWMijk3FK9U2u5OvtHXVKieO1RfKrLpbT1UAz M0ibPmJP9v3WZLTZu5wJhjZcHw2KVpw= Received: from mail-yb1-f198.google.com (mail-yb1-f198.google.com [209.85.219.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-120-wXBTEOKFPbaj2KMvqegU8Q-1; Wed, 12 Jun 2024 10:42:36 -0400 X-MC-Unique: wXBTEOKFPbaj2KMvqegU8Q-1 Received: by mail-yb1-f198.google.com with SMTP id 3f1490d57ef6-dfef58530cdso50927276.3 for ; Wed, 12 Jun 2024 07:42:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718203355; x=1718808155; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=EhSChAN7rRoGGaUSPSWCzV7QQQImNhxehyAptMysuXo=; b=Txtgb4S1KkNdu3iKpZWwwpNxdta5fXlnFZ575IyhNuIIfUbaDnZSUIpGvu2gDk5ALA NZsEbMunXo5ds7mCpW7EK47hrPLh2SvC3hnqVZ/+JR4t8qBF8h/x17j9YSGbd/GBLATO QThJKISEwgS78Uba+NMGN4ejDyfDsnw5h1zmwgUyFdq0tfStPfw4h8VDtZAUILEQb5zz xWfI9SdAEl80ujDQDnBeDH8GZM6RJQxgL6Hah7YgTDeX1G+pNqRxFaHQ3gl860dAnxna VToq7HFzZI4Z3ha2FsQJwi58G8yLOb33j/yMEBB/MTNgT8E5RzpmKsz7sfCq7ncxxhPc w+Lw== X-Gm-Message-State: AOJu0YzD4p6/LgpU4NekwA1yyNMStxdWjvhA71WFWcRMOD79bNrBCzMT lqxnmegq7lvBEFvxCykq3tnMiybR/lsrUSeRJn26aIqpR2rJkl00IZyrgxGkWIfO5hDxLTxYCJw C3lShsOoqF8aY05mGELSzfP3BrRRrpXwxyKNi80WeLuQZORnIsyRYzXIbr67Ims5sjn1u9lyj1C 2tCx+CJdaL1lqTiSr2axxQOyYHfvgdcbpd1g== X-Received: by 2002:a25:aac1:0:b0:df8:3484:770f with SMTP id 3f1490d57ef6-dfe6a3c48cdmr1628047276.5.1718203355193; Wed, 12 Jun 2024 07:42:35 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFXuFYYrHpwSclU/HZVpITEarM/IvEfihEypfKC02ucdu7kFmB0yXS4hLJlNTkaiCCIPYeSaA== X-Received: by 2002:a25:aac1:0:b0:df8:3484:770f with SMTP id 3f1490d57ef6-dfe6a3c48cdmr1627999276.5.1718203354597; Wed, 12 Jun 2024 07:42:34 -0700 (PDT) Received: from x1n.redhat.com (pool-99-254-121-117.cpe.net.cable.rogers.com. [99.254.121.117]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4405e3ded65sm37581681cf.87.2024.06.12.07.42.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Jun 2024 07:42:34 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Cc: Jiri Denemark , Prasad Pandit , Fabiano Rosas , Bandan Das , peterx@redhat.com Subject: [PATCH 2/4] migration: Rename thread debug names Date: Wed, 12 Jun 2024 10:42:26 -0400 Message-ID: <20240612144228.1179240-3-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240612144228.1179240-1-peterx@redhat.com> References: <20240612144228.1179240-1-peterx@redhat.com> MIME-Version: 1.0 Received-SPF: pass client-ip=170.10.133.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.143, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org The postcopy thread names on dest QEMU are slightly confusing, partly I'll need to blame myself on 36f62f11e4 ("migration: Postcopy preemption preparation on channel creation"). E.g., "fault-fast" reads like a fast version of "fault-default", but it's actually the fast version of "postcopy/listen". Taking this chance, rename all the migration threads with proper rules. Considering we only have 15 chars usable, prefix all threads with "mig/", meanwhile identify src/dst threads properly this time. So now most thread names will look like "mig/DIR/xxx", where DIR will be "src"/"dst", except the bg-snapshot thread which doesn't have a direction. For multifd threads, making them "mig/{src|dst}/{send|recv}_%d". We used to have "live_migration" thread for a very long time, now it's called "mig/src/main". We may hope to have "mig/dst/main" soon but not yet. Signed-off-by: Peter Xu Reviewed-by: Fabiano Rosas --- migration/colo.c | 2 +- migration/migration.c | 6 +++--- migration/multifd.c | 6 +++--- migration/postcopy-ram.c | 4 ++-- migration/savevm.c | 2 +- 5 files changed, 10 insertions(+), 10 deletions(-) diff --git a/migration/colo.c b/migration/colo.c index f96c2ee069..6449490221 100644 --- a/migration/colo.c +++ b/migration/colo.c @@ -935,7 +935,7 @@ void coroutine_fn colo_incoming_co(void) assert(bql_locked()); assert(migration_incoming_colo_enabled()); - qemu_thread_create(&th, "COLO incoming", colo_process_incoming_thread, + qemu_thread_create(&th, "mig/dst/colo", colo_process_incoming_thread, mis, QEMU_THREAD_JOINABLE); mis->colo_incoming_co = qemu_coroutine_self(); diff --git a/migration/migration.c b/migration/migration.c index e1b269624c..d41e00ed4c 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2408,7 +2408,7 @@ static int open_return_path_on_source(MigrationState *ms) trace_open_return_path_on_source(); - qemu_thread_create(&ms->rp_state.rp_thread, "return path", + qemu_thread_create(&ms->rp_state.rp_thread, "mig/src/rp-thr", source_return_path_thread, ms, QEMU_THREAD_JOINABLE); ms->rp_state.rp_thread_created = true; @@ -3747,10 +3747,10 @@ void migrate_fd_connect(MigrationState *s, Error *error_in) } if (migrate_background_snapshot()) { - qemu_thread_create(&s->thread, "bg_snapshot", + qemu_thread_create(&s->thread, "mig/snapshot", bg_migration_thread, s, QEMU_THREAD_JOINABLE); } else { - qemu_thread_create(&s->thread, "live_migration", + qemu_thread_create(&s->thread, "mig/src/main", migration_thread, s, QEMU_THREAD_JOINABLE); } s->migration_thread_running = true; diff --git a/migration/multifd.c b/migration/multifd.c index f317bff077..7afc0965f6 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -1059,7 +1059,7 @@ static bool multifd_tls_channel_connect(MultiFDSendParams *p, args->p = p; p->tls_thread_created = true; - qemu_thread_create(&p->tls_thread, "multifd-tls-handshake-worker", + qemu_thread_create(&p->tls_thread, "mig/src/tls", multifd_tls_handshake_thread, args, QEMU_THREAD_JOINABLE); return true; @@ -1185,7 +1185,7 @@ bool multifd_send_setup(void) } else { p->iov = g_new0(struct iovec, page_count); } - p->name = g_strdup_printf("multifdsend_%d", i); + p->name = g_strdup_printf("mig/src/send_%d", i); p->page_size = qemu_target_page_size(); p->page_count = page_count; p->write_flags = 0; @@ -1601,7 +1601,7 @@ int multifd_recv_setup(Error **errp) + sizeof(uint64_t) * page_count; p->packet = g_malloc0(p->packet_len); } - p->name = g_strdup_printf("multifdrecv_%d", i); + p->name = g_strdup_printf("mig/dst/recv_%d", i); p->iov = g_new0(struct iovec, page_count); p->normal = g_new0(ram_addr_t, page_count); p->zero = g_new0(ram_addr_t, page_count); diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 3419779548..97701e6bb2 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -1238,7 +1238,7 @@ int postcopy_ram_incoming_setup(MigrationIncomingState *mis) return -1; } - postcopy_thread_create(mis, &mis->fault_thread, "fault-default", + postcopy_thread_create(mis, &mis->fault_thread, "mig/dst/fault", postcopy_ram_fault_thread, QEMU_THREAD_JOINABLE); mis->have_fault_thread = true; @@ -1258,7 +1258,7 @@ int postcopy_ram_incoming_setup(MigrationIncomingState *mis) * This thread needs to be created after the temp pages because * it'll fetch RAM_CHANNEL_POSTCOPY PostcopyTmpPage immediately. */ - postcopy_thread_create(mis, &mis->postcopy_prio_thread, "fault-fast", + postcopy_thread_create(mis, &mis->postcopy_prio_thread, "mig/dst/preempt", postcopy_preempt_thread, QEMU_THREAD_JOINABLE); mis->preempt_thread_status = PREEMPT_THREAD_CREATED; } diff --git a/migration/savevm.c b/migration/savevm.c index c621f2359b..e71410d8c1 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2129,7 +2129,7 @@ static int loadvm_postcopy_handle_listen(MigrationIncomingState *mis) } mis->have_listen_thread = true; - postcopy_thread_create(mis, &mis->listen_thread, "postcopy/listen", + postcopy_thread_create(mis, &mis->listen_thread, "mig/dst/listen", postcopy_ram_listen_thread, QEMU_THREAD_DETACHED); trace_loadvm_postcopy_handle_listen("return");