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GET /api/patches/2197748/?format=api
{ "id": 2197748, "url": "http://patchwork.ozlabs.org/api/patches/2197748/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260218132633.29748-25-hreitz@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260218132633.29748-25-hreitz@redhat.com>", "list_archive_url": null, "date": "2026-02-18T13:26:33", "name": "[v4,24/24] iotests/308: Add multi-threading sanity test", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "ce1c5831e215c418d1820faf89dc776a07821f62", "submitter": { "id": 82279, "url": "http://patchwork.ozlabs.org/api/people/82279/?format=api", "name": "Hanna Czenczek", "email": "hreitz@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260218132633.29748-25-hreitz@redhat.com/mbox/", "series": [ { "id": 492547, "url": "http://patchwork.ozlabs.org/api/series/492547/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492547", "date": "2026-02-18T13:26:09", "name": "export/fuse: Use coroutines and multi-threading", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/492547/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2197748/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2197748/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=MptuV2Qk;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=FUHAJtut;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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charset=UTF-8", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.129.124; envelope-from=hreitz@redhat.com;\n 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=-0.043,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-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": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Run qemu-img bench on a simple multi-threaded FUSE export to test that\nit works.\n\nReviewed-by: Stefan Hajnoczi <stefanha@redhat.com>\nSigned-off-by: Hanna Czenczek <hreitz@redhat.com>\n---\n tests/qemu-iotests/308 | 51 ++++++++++++++++++++++++++++++++++\n tests/qemu-iotests/308.out | 56 ++++++++++++++++++++++++++++++++++++++\n 2 files changed, 107 insertions(+)", "diff": "diff --git a/tests/qemu-iotests/308 b/tests/qemu-iotests/308\nindex a83c6fc01f..f4a06a522e 100755\n--- a/tests/qemu-iotests/308\n+++ b/tests/qemu-iotests/308\n@@ -441,6 +441,57 @@ $QEMU_IO -c 'read -P 0 0 64M' \"$TEST_IMG\" | _filter_qemu_io\n \n _cleanup_test_img\n \n+echo\n+echo '=== Multi-threading ==='\n+\n+# Just set up a null block device, export it (with multi-threading), and run\n+# qemu-img bench on it (to get parallel requests)\n+\n+_launch_qemu\n+_send_qemu_cmd $QEMU_HANDLE \\\n+ \"{'execute': 'qmp_capabilities'}\" \\\n+ 'return'\n+\n+_send_qemu_cmd $QEMU_HANDLE \\\n+ \"{'execute': 'blockdev-add',\n+ 'arguments': {\n+ 'driver': 'null-co',\n+ 'node-name': 'null'\n+ } }\" \\\n+ 'return'\n+\n+for id in iothread{0,1,2,3}; do\n+ _send_qemu_cmd $QEMU_HANDLE \\\n+ \"{'execute': 'object-add',\n+ 'arguments': {\n+ 'qom-type': 'iothread',\n+ 'id': '$id'\n+ } }\" \\\n+ 'return'\n+done\n+\n+echo\n+\n+iothreads=\"['iothread0', 'iothread1', 'iothread2', 'iothread3']\"\n+fuse_export_add \\\n+ 'export' \\\n+ \"'mountpoint': '$EXT_MP', 'iothread': $iothreads\" \\\n+ 'return' \\\n+ 'null'\n+\n+echo\n+$QEMU_IMG bench -f raw \"$EXT_MP\" |\n+ sed -e 's/[0-9.]\\+ seconds/X.XXX seconds/'\n+echo\n+\n+fuse_export_del 'export'\n+\n+_send_qemu_cmd $QEMU_HANDLE \\\n+ \"{'execute': 'quit'}\" \\\n+ 'return'\n+\n+wait=yes _cleanup_qemu\n+\n # success, all done\n echo \"*** done\"\n rm -f $seq.full\ndiff --git a/tests/qemu-iotests/308.out b/tests/qemu-iotests/308.out\nindex ebeaf64b48..580cc94e92 100644\n--- a/tests/qemu-iotests/308.out\n+++ b/tests/qemu-iotests/308.out\n@@ -217,4 +217,60 @@ read 67108864/67108864 bytes at offset 0\n {\"return\": {}}\n read 67108864/67108864 bytes at offset 0\n 64 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)\n+\n+=== Multi-threading ===\n+{'execute': 'qmp_capabilities'}\n+{\"return\": {}}\n+{'execute': 'blockdev-add',\n+ 'arguments': {\n+ 'driver': 'null-co',\n+ 'node-name': 'null'\n+ } }\n+{\"return\": {}}\n+{'execute': 'object-add',\n+ 'arguments': {\n+ 'qom-type': 'iothread',\n+ 'id': 'iothread0'\n+ } }\n+{\"return\": {}}\n+{'execute': 'object-add',\n+ 'arguments': {\n+ 'qom-type': 'iothread',\n+ 'id': 'iothread1'\n+ } }\n+{\"return\": {}}\n+{'execute': 'object-add',\n+ 'arguments': {\n+ 'qom-type': 'iothread',\n+ 'id': 'iothread2'\n+ } }\n+{\"return\": {}}\n+{'execute': 'object-add',\n+ 'arguments': {\n+ 'qom-type': 'iothread',\n+ 'id': 'iothread3'\n+ } }\n+{\"return\": {}}\n+\n+{'execute': 'block-export-add',\n+ 'arguments': {\n+ 'type': 'fuse',\n+ 'id': 'export',\n+ 'node-name': 'null',\n+ 'mountpoint': 'TEST_DIR/t.IMGFMT.fuse', 'iothread': ['iothread0', 'iothread1', 'iothread2', 'iothread3']\n+ } }\n+{\"return\": {}}\n+\n+Sending 75000 read requests, 4096 bytes each, 64 in parallel (starting at offset 0, step size 4096)\n+Run completed in X.XXX seconds.\n+\n+{'execute': 'block-export-del',\n+ 'arguments': {\n+ 'id': 'export'\n+ } }\n+{\"return\": {}}\n+{\"timestamp\": {\"seconds\": TIMESTAMP, \"microseconds\": TIMESTAMP}, \"event\": \"BLOCK_EXPORT_DELETED\", \"data\": {\"id\": \"export\"}}\n+{'execute': 'quit'}\n+{\"timestamp\": {\"seconds\": TIMESTAMP, \"microseconds\": TIMESTAMP}, \"event\": \"SHUTDOWN\", \"data\": {\"guest\": false, \"reason\": \"host-qmp-quit\"}}\n+{\"return\": {}}\n *** done\n", "prefixes": [ "v4", "24/24" ] }