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Mon, 20 Jul 2026 07:59:02 -0700 (PDT) X-Received: by 2002:ac8:58d6:0:b0:51c:7b12:5fdc with SMTP id d75a77b69052e-5213d4b3a56mr137086581cf.88.1784559541925; Mon, 20 Jul 2026 07:59:01 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Cc: Fabiano Rosas , Stefan Hajnoczi , Peter Xu , Bin Guo Subject: [PULL 3/3] migration: clean up postcopy blocktime presentation Date: Mon, 20 Jul 2026 10:58:53 -0400 Message-ID: <20260720145853.1483307-4-peterx@redhat.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260720145853.1483307-1-peterx@redhat.com> References: <20260720145853.1483307-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists1p.gnu.org; Received-SPF: permerror client-ip=170.10.129.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H2=-0.01, SPF_HELO_PASS=-0.001, T_SPF_PERMERROR=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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1784559581345158500 Content-Type: text/plain; charset="utf-8" From: Bin Guo Small cleanups for the postcopy blocktime fine-grained tracking feature: * Remove a redundant memset() on latency_buckets after g_new0(). * Use singular "Latency" in the HMP label for postcopy non-vCPU latency, consistent with other single-value labels. Signed-off-by: Bin Guo Link: https://lore.kernel.org/r/20260716101952.65329-4-guobin@linux.alibaba= .com Signed-off-by: Peter Xu --- migration/migration-hmp-cmds.c | 2 +- migration/postcopy-ram.c | 3 --- 2 files changed, 1 insertion(+), 4 deletions(-) diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c index 8b385f560e..7ec010fd05 100644 --- a/migration/migration-hmp-cmds.c +++ b/migration/migration-hmp-cmds.c @@ -95,7 +95,7 @@ static void migration_dump_blocktime(Monitor *mon, Migrat= ionInfo *info) } =20 if (info->has_postcopy_non_vcpu_latency) { - monitor_printf(mon, "Postcopy non-vCPU Latencies (ns): %" PRIu64 "= \n", + monitor_printf(mon, "Postcopy non-vCPU Latency (ns): %" PRIu64 "\n= ", info->postcopy_non_vcpu_latency); } =20 diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index b0828edb3e..a3314d3180 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -297,9 +297,6 @@ static struct PostcopyBlocktimeContext *blocktime_conte= xt_new(void) unsigned int smp_cpus =3D ms->smp.cpus; PostcopyBlocktimeContext *ctx =3D g_new0(PostcopyBlocktimeContext, 1); =20 - /* Initialize all counters to be zeros */ - memset(ctx->latency_buckets, 0, sizeof(ctx->latency_buckets)); - ctx->vcpu_blocktime_total =3D g_new0(uint64_t, smp_cpus); ctx->vcpu_faults_count =3D g_new0(uint64_t, smp_cpus); ctx->vcpu_faults_current =3D g_new0(uint8_t, smp_cpus); --=20 2.54.0