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[184.144.111.238]) by smtp.gmail.com with ESMTPSA id d81sm12908578qke.32.2021.06.15.10.55.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Jun 2021 10:55:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623779730; 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=SQdHEsrkL9L9ny9KaNd0CwETbAXSirv2mFrCCT74s9I=; b=OrSJlmmRUvNd0AyAu4IA6kQCiE6Y+z5KWstwQsahDAg2m5JyFcosiZLNk5uqDrAahL/ewM f0ufBhx6XKefUehqEo/ouevpWj+g821VnmNUo+wxe1UEAUkzQnNiHp34nambk3tMWRHYeH ykpwT5Ymp8JhU0Nu4oz3CRithT/0lfg= X-MC-Unique: Bx7zC9_pNTCw58aGC3j5jQ-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=SQdHEsrkL9L9ny9KaNd0CwETbAXSirv2mFrCCT74s9I=; b=KQMbyOOhugOfLDJZPzgbBQbId6eCd4UbNY6RgVeTMAzepinJrMRy3j+UoPYcnWjyxS nl7Gxq/yrbU7qOUc/4arhWZS9y/Mi5lB0ixyTFGfT8l2xQciXZazdaXsEEX1cMY583Cb zL2I+jttCfPunMOYMea5KFIcfJnjEbA54qmmNQJAwzzrPz+cj7MFsOWPX6phYlx7OPz/ K3VvPS8YwL8dwgI2H2LcK95DvuseuaunvvGJU1pvEBT2GnTtfzPUIXrc0noJukUc3KD7 PEl9z59HuzsWxqXD1c+EwIkP3uRXjE61UZH8ediFA/qZ+6paNL9Aw03nQMOSFj+joMLl iTmw== X-Gm-Message-State: AOAM530fMBNNsP8YbsOXY43iipECQq9Q/jZxJ4S/WQ/c5QKEnzRloWCf Ti7Q+8WxVvysJZubbamvv0pwVTosws3bdp1qmXwrMr4E43kthaHoZZyc9COEpT3t8k1HhqbIZMc LDFOawJIJDQ0Dw4GpMa8aOM0boIPYCFOCUY3F0gL6pUyKWzv+YfWjGdG6hXgAaoCc X-Received: by 2002:a05:622a:18e:: with SMTP id s14mr829038qtw.69.1623779728480; Tue, 15 Jun 2021 10:55:28 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwJQrrCRqEiTVj0ODkiRy8x9OgFRUNmQNOSixJJIvVaDMP4jTFZNCHHsiUDcJhe6Vrf+HMtYg== X-Received: by 2002:a05:622a:18e:: with SMTP id s14mr829016qtw.69.1623779728177; Tue, 15 Jun 2021 10:55:28 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Subject: [PATCH v2 2/2] tests: migration-test: Add dirty ring test Date: Tue, 15 Jun 2021 13:55:23 -0400 Message-Id: <20210615175523.439830-3-peterx@redhat.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210615175523.439830-1-peterx@redhat.com> References: <20210615175523.439830-1-peterx@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=peterx@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.197, 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: Paolo Bonzini , Leonardo Bras Soares Passos , "Dr . David Alan Gilbert" , peterx@redhat.com, Juan Quintela Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Add dirty ring test if kernel supports it. Add the dirty ring parameter on source should be mostly enough, but let's change the dest too to make them match always. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Peter Xu Reported-by: Richard Henderson Reviewed-by: Juan Quintela --- tests/qtest/migration-test.c | 58 ++++++++++++++++++++++++++++++++++-- 1 file changed, 55 insertions(+), 3 deletions(-) diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c index d9225f58d4d..9ef6b471353 100644 --- a/tests/qtest/migration-test.c +++ b/tests/qtest/migration-test.c @@ -27,6 +27,10 @@ #include "migration-helpers.h" #include "tests/migration/migration-test.h" =20 +#if defined(__linux__) +#include "linux/kvm.h" +#endif + /* TODO actually test the results and get rid of this */ #define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS_= _)) =20 @@ -467,6 +471,8 @@ typedef struct { bool use_shmem; /* only launch the target process */ bool only_target; + /* Use dirty ring if true; dirty logging otherwise */ + bool use_dirty_ring; char *opts_source; char *opts_target; } MigrateStart; @@ -573,11 +579,13 @@ static int test_migrate_start(QTestState **from, QTes= tState **to, shmem_opts =3D g_strdup(""); } =20 - cmd_source =3D g_strdup_printf("-accel kvm -accel tcg%s%s " + cmd_source =3D g_strdup_printf("-accel kvm%s -accel tcg%s%s " "-name source,debug-threads=3Don " "-m %s " "-serial file:%s/src_serial " "%s %s %s %s", + args->use_dirty_ring ? + ",dirty-ring-size=3D4096" : "", machine_opts ? " -machine " : "", machine_opts ? machine_opts : "", memory_size, tmpfs, @@ -587,12 +595,14 @@ static int test_migrate_start(QTestState **from, QTes= tState **to, *from =3D qtest_init(cmd_source); } =20 - cmd_target =3D g_strdup_printf("-accel kvm -accel tcg%s%s " + cmd_target =3D g_strdup_printf("-accel kvm%s -accel tcg%s%s " "-name target,debug-threads=3Don " "-m %s " "-serial file:%s/dest_serial " "-incoming %s " "%s %s %s %s", + args->use_dirty_ring ? + ",dirty-ring-size=3D4096" : "", machine_opts ? " -machine " : "", machine_opts ? machine_opts : "", memory_size, tmpfs, uri, @@ -785,12 +795,14 @@ static void test_baddest(void) test_migrate_end(from, to, false); } =20 -static void test_precopy_unix(void) +static void test_precopy_unix_common(bool dirty_ring) { g_autofree char *uri =3D g_strdup_printf("unix:%s/migsocket", tmpfs); MigrateStart *args =3D migrate_start_new(); QTestState *from, *to; =20 + args->use_dirty_ring =3D dirty_ring; + if (test_migrate_start(&from, &to, uri, args)) { return; } @@ -825,6 +837,18 @@ static void test_precopy_unix(void) test_migrate_end(from, to, true); } =20 +static void test_precopy_unix(void) +{ + /* Using default dirty logging */ + test_precopy_unix_common(false); +} + +static void test_precopy_unix_dirty_ring(void) +{ + /* Using dirty ring tracking */ + test_precopy_unix_common(true); +} + #if 0 /* Currently upset on aarch64 TCG */ static void test_ignore_shared(void) @@ -1369,6 +1393,29 @@ static void test_multifd_tcp_cancel(void) test_migrate_end(from, to2, true); } =20 +static bool kvm_dirty_ring_supported(void) +{ +#if defined(__linux__) + int ret, kvm_fd =3D open("/dev/kvm", O_RDONLY); + + if (kvm_fd < 0) { + return false; + } + + ret =3D ioctl(kvm_fd, KVM_CHECK_EXTENSION, KVM_CAP_DIRTY_LOG_RING); + close(kvm_fd); + + /* We test with 4096 slots */ + if (ret < 4096) { + return false; + } + + return true; +#else + return false; +#endif +} + int main(int argc, char **argv) { char template[] =3D "/tmp/migration-test-XXXXXX"; @@ -1438,6 +1485,11 @@ int main(int argc, char **argv) qtest_add_func("/migration/multifd/tcp/zstd", test_multifd_tcp_zstd); #endif =20 + if (kvm_dirty_ring_supported()) { + qtest_add_func("/migration/dirty_ring", + test_precopy_unix_dirty_ring); + } + ret =3D g_test_run(); =20 g_assert_cmpint(ret, =3D=3D, 0); --=20 2.31.1