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GET /api/1.1/patches/2220550/?format=api
{ "id": 2220550, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2220550/?format=api", "web_url": "http://patchwork.ozlabs.org/project/openvswitch/patch/d2fa3909e90d356f80d2fa6dbdc3e712ac66eb7f.1775568640.git.tredaelli@redhat.com/", "project": { "id": 47, "url": "http://patchwork.ozlabs.org/api/1.1/projects/47/?format=api", "name": "Open vSwitch", "link_name": "openvswitch", "list_id": "ovs-dev.openvswitch.org", "list_email": "ovs-dev@openvswitch.org", "web_url": "http://openvswitch.org/", "scm_url": "git@github.com:openvswitch/ovs.git", "webscm_url": "https://github.com/openvswitch/ovs" }, "msgid": "<d2fa3909e90d356f80d2fa6dbdc3e712ac66eb7f.1775568640.git.tredaelli@redhat.com>", "date": "2026-04-07T13:34:32", "name": "[ovs-dev,v2,4/5] dpif-netdev: Add JSON output to pmd-stats-show.", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "cde35fc0191066f40275424baa6b21001ec417ff", "submitter": { "id": 70949, "url": "http://patchwork.ozlabs.org/api/1.1/people/70949/?format=api", "name": "Timothy Redaelli", "email": "tredaelli@redhat.com" }, "delegate": { "id": 75123, "url": "http://patchwork.ozlabs.org/api/1.1/users/75123/?format=api", "username": "echaudron", "first_name": "Eelco", "last_name": "Chaudron", "email": "echaudro@redhat.com" }, "mbox": "http://patchwork.ozlabs.org/project/openvswitch/patch/d2fa3909e90d356f80d2fa6dbdc3e712ac66eb7f.1775568640.git.tredaelli@redhat.com/mbox/", "series": [ { "id": 498985, "url": "http://patchwork.ozlabs.org/api/1.1/series/498985/?format=api", "web_url": "http://patchwork.ozlabs.org/project/openvswitch/list/?series=498985", "date": "2026-04-07T13:34:24", "name": "Add JSON output to several ovs-appctl commands", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/498985/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2220550/comments/", "check": "fail", "checks": "http://patchwork.ozlabs.org/api/patches/2220550/checks/", "tags": {}, "headers": { "Return-Path": "<ovs-dev-bounces@openvswitch.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "dev@openvswitch.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "ovs-dev@lists.linuxfoundation.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=HIy1vZql;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=openvswitch.org\n (client-ip=140.211.166.138; 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helo=lists.linuxfoundation.org;\n envelope-from=ovs-dev-bounces@openvswitch.org; receiver=<UNKNOWN> ", "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 smtp1.osuosl.org C8C178116C", "OpenDKIM Filter v2.11.0 smtp3.osuosl.org 2EAC760D68" ], "Received-SPF": "Pass (mailfrom) identity=mailfrom; client-ip=170.10.129.124;\n helo=us-smtp-delivery-124.mimecast.com; envelope-from=tredaelli@redhat.com;\n receiver=<UNKNOWN>", "DMARC-Filter": "OpenDMARC Filter v1.4.2 smtp3.osuosl.org 2EAC760D68", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1775568945;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=khNl9SGoy5RVn3wjYm6IQYprF2iG5E+hLgVFqDGcNnA=;\n b=HIy1vZqlQFUoduxwq6e91Vn6htiVMcdoXPVYgsqVnGNRGQ9KKU+HYyEQjIK05WI4evDgLI\n MN59hNuwb2a+FMM3OLcoT4nRr5yQ47Yyeb79v4Dv1ZeyXfrZ5BdEHMfdAaaeOa0RW7FlaI\n 54QipNEaKDlQm+KtsJhOnl+tLBPCOSM=", "X-MC-Unique": "pA8nIifNNm-KqO5RN3yTHg-1", "X-Mimecast-MFC-AGG-ID": "pA8nIifNNm-KqO5RN3yTHg_1775568938", "To": "dev@openvswitch.org", "Date": "Tue, 7 Apr 2026 15:34:32 +0200", "Message-ID": "\n <d2fa3909e90d356f80d2fa6dbdc3e712ac66eb7f.1775568640.git.tredaelli@redhat.com>", "In-Reply-To": "<cover.1775568640.git.tredaelli@redhat.com>", "References": "<cover.1775568640.git.tredaelli@redhat.com>", "MIME-Version": "1.0", "X-Scanned-By": "MIMEDefang 3.0 on 10.30.177.12", "X-Mimecast-Spam-Score": "0", "X-Mimecast-MFC-PROC-ID": "V69xfGejrqq0KL5bprkxuKW2yNLLc3B_fNdp_3sxxs4_1775568938", "X-Mimecast-Originator": "redhat.com", "Subject": "[ovs-dev] [PATCH v2 4/5] dpif-netdev: Add JSON output to\n pmd-stats-show.", "X-BeenThere": "ovs-dev@openvswitch.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "<ovs-dev.openvswitch.org>", "List-Unsubscribe": "<https://mail.openvswitch.org/mailman/options/ovs-dev>,\n <mailto:ovs-dev-request@openvswitch.org?subject=unsubscribe>", "List-Archive": "<http://mail.openvswitch.org/pipermail/ovs-dev/>", "List-Post": "<mailto:ovs-dev@openvswitch.org>", "List-Help": "<mailto:ovs-dev-request@openvswitch.org?subject=help>", "List-Subscribe": "<https://mail.openvswitch.org/mailman/listinfo/ovs-dev>,\n <mailto:ovs-dev-request@openvswitch.org?subject=subscribe>", "From": "Timothy Redaelli via dev <ovs-dev@openvswitch.org>", "Reply-To": "Timothy Redaelli <tredaelli@redhat.com>", "Cc": "i.maximets@ovn.org", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "ovs-dev-bounces@openvswitch.org", "Sender": "\"dev\" <ovs-dev-bounces@openvswitch.org>" }, "content": "When --format json is passed to ovs-appctl, pmd-stats-show returns a\nJSON object keyed by thread identifier (\"pmd-cNN\" for PMD threads,\n\"main\" for the main thread). Each entry groups counters into\nsub-objects: \"packets\" (received, recirculated), \"flow-cache-hits\"\n(exact, megaflow, signature, etc.), \"upcalls\" (success, failure),\n\"cycles\" (idle/processing with count and percentage), and several\n\"average-*\" fields.\n\nThe \"core\" and \"numa\" fields are always present for schema consistency:\nthey contain the numeric value for PMD threads, or null for the main\nthread and when the value is unspecified.\n\nThe \"pmd-cNN\" key format is chosen over the full thread name for\nstability (see pmd-sleep-show commit for rationale).\n\nExample output (abbreviated):\n {\"main\": {\"core\": null, \"numa\": null, \"packets\": {\"received\": 0, ...}, ...},\n \"pmd-c03\": {\"core\": 3, \"numa\": 0, \"packets\": {\"received\": 1000, ...}, ...}}\n\nSigned-off-by: Timothy Redaelli <tredaelli@redhat.com>\n---\n lib/dpif-netdev.c | 143 ++++++++++++++++++++++++++++++++++++++++++----\n tests/pmd.at | 73 +++++++++++++++++++++++\n 2 files changed, 205 insertions(+), 11 deletions(-)", "diff": "diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c\nindex 32e1dc938..b2b61a514 100644\n--- a/lib/dpif-netdev.c\n+++ b/lib/dpif-netdev.c\n@@ -724,6 +724,111 @@ pmd_info_show_stats(struct ds *reply,\n stats[PMD_CYCLES_ITER_BUSY], total_packets);\n }\n \n+static struct json *\n+pmd_info_show_stats_json(struct dp_netdev_pmd_thread *pmd)\n+{\n+ uint64_t stats[PMD_N_STATS];\n+ uint64_t total_cycles, total_packets;\n+ double passes_per_pkt = 0;\n+ double lookups_per_hit = 0;\n+ double packets_per_batch = 0;\n+ struct json *json, *json_averages, *json_cycles, *json_flow_cache;\n+ struct json *json_idle, *json_packets, *json_processing, *json_upcalls;\n+\n+ pmd_perf_read_counters(&pmd->perf_stats, stats);\n+ total_cycles = stats[PMD_CYCLES_ITER_IDLE] + stats[PMD_CYCLES_ITER_BUSY];\n+ total_packets = stats[PMD_STAT_RECV];\n+\n+ if (total_packets > 0) {\n+ passes_per_pkt = (total_packets + stats[PMD_STAT_RECIRC])\n+ / (double) total_packets;\n+ }\n+ if (stats[PMD_STAT_MASKED_HIT] > 0) {\n+ lookups_per_hit = stats[PMD_STAT_MASKED_LOOKUP]\n+ / (double) stats[PMD_STAT_MASKED_HIT];\n+ }\n+ if (stats[PMD_STAT_SENT_BATCHES] > 0) {\n+ packets_per_batch = stats[PMD_STAT_SENT_PKTS]\n+ / (double) stats[PMD_STAT_SENT_BATCHES];\n+ }\n+\n+ json = json_object_create();\n+ json_object_put(json, \"core\",\n+ (pmd->core_id != OVS_CORE_UNSPEC\n+ && pmd->core_id != NON_PMD_CORE_ID)\n+ ? json_integer_create(pmd->core_id)\n+ : json_null_create());\n+ json_object_put(json, \"numa\",\n+ pmd->numa_id != OVS_NUMA_UNSPEC\n+ ? json_integer_create(pmd->numa_id)\n+ : json_null_create());\n+ json_averages = json_object_create();\n+ json_object_put(json_averages, \"cycles-per-packet\",\n+ json_real_create((total_cycles > 0 && total_packets > 0)\n+ ? total_cycles / (double) total_packets : 0.0));\n+ json_object_put(json_averages, \"datapath-passes-per-packet\",\n+ json_real_create(passes_per_pkt));\n+ json_object_put(json_averages, \"packets-per-output-batch\",\n+ json_real_create(packets_per_batch));\n+ json_object_put(json_averages, \"processing-cycles-per-packet\",\n+ json_real_create((total_cycles > 0 && total_packets > 0)\n+ ? stats[PMD_CYCLES_ITER_BUSY]\n+ / (double) total_packets : 0.0));\n+ json_object_put(json_averages, \"subtable-lookups-per-megaflow-hit\",\n+ json_real_create(lookups_per_hit));\n+ json_object_put(json, \"averages\", json_averages);\n+\n+ json_idle = json_object_create();\n+ json_object_put(json_idle, \"count\",\n+ json_integer_create(stats[PMD_CYCLES_ITER_IDLE]));\n+ json_object_put(json_idle, \"percentage\",\n+ json_real_create(total_cycles > 0\n+ ? stats[PMD_CYCLES_ITER_IDLE]\n+ / (double) total_cycles * 100 : 0.0));\n+ json_processing = json_object_create();\n+ json_object_put(json_processing, \"count\",\n+ json_integer_create(stats[PMD_CYCLES_ITER_BUSY]));\n+ json_object_put(json_processing, \"percentage\",\n+ json_real_create(total_cycles > 0\n+ ? stats[PMD_CYCLES_ITER_BUSY]\n+ / (double) total_cycles * 100 : 0.0));\n+ json_cycles = json_object_create();\n+ json_object_put(json_cycles, \"idle\", json_idle);\n+ json_object_put(json_cycles, \"processing\", json_processing);\n+ json_object_put(json, \"cycles\", json_cycles);\n+\n+ json_flow_cache = json_object_create();\n+ json_object_put(json_flow_cache, \"exact\",\n+ json_integer_create(stats[PMD_STAT_EXACT_HIT]));\n+ json_object_put(json_flow_cache, \"megaflow\",\n+ json_integer_create(stats[PMD_STAT_MASKED_HIT]));\n+ json_object_put(json_flow_cache, \"miniflow-extract\",\n+ json_integer_create(stats[PMD_STAT_MFEX_OPT_HIT]));\n+ json_object_put(json_flow_cache, \"partial-hardware-offload\",\n+ json_integer_create(stats[PMD_STAT_PHWOL_HIT]));\n+ json_object_put(json_flow_cache, \"signature\",\n+ json_integer_create(stats[PMD_STAT_SMC_HIT]));\n+ json_object_put(json_flow_cache, \"simple\",\n+ json_integer_create(stats[PMD_STAT_SIMPLE_HIT]));\n+ json_object_put(json, \"flow-cache-hits\", json_flow_cache);\n+\n+ json_packets = json_object_create();\n+ json_object_put(json_packets, \"received\",\n+ json_integer_create(total_packets));\n+ json_object_put(json_packets, \"recirculated\",\n+ json_integer_create(stats[PMD_STAT_RECIRC]));\n+ json_object_put(json, \"packets\", json_packets);\n+\n+ json_upcalls = json_object_create();\n+ json_object_put(json_upcalls, \"failure\",\n+ json_integer_create(stats[PMD_STAT_LOST]));\n+ json_object_put(json_upcalls, \"success\",\n+ json_integer_create(stats[PMD_STAT_MISS]));\n+ json_object_put(json, \"upcalls\", json_upcalls);\n+\n+ return json;\n+}\n+\n static void\n pmd_info_show_perf(struct ds *reply,\n struct dp_netdev_pmd_thread *pmd,\n@@ -1418,6 +1523,7 @@ dpif_netdev_pmd_info(struct unixctl_conn *conn, int argc, const char *argv[],\n / INTERVAL_USEC_TO_SEC;\n bool show_header = true;\n uint64_t max_sleep;\n+ struct json *json_result = NULL;\n \n ovs_mutex_lock(&dp_netdev_mutex);\n \n@@ -1457,15 +1563,17 @@ dpif_netdev_pmd_info(struct unixctl_conn *conn, int argc, const char *argv[],\n \n sorted_poll_thread_list(dp, &pmd_list, &n);\n \n- if (type == PMD_INFO_SLEEP_SHOW\n- && unixctl_command_get_output_format(conn)\n- == UNIXCTL_OUTPUT_FMT_JSON) {\n- struct json *json_result = pmd_info_sleep_show_json(dp, pmd_list, n);\n- free(pmd_list);\n- ovs_mutex_unlock(&dp_netdev_mutex);\n- unixctl_command_reply_json(conn, json_result);\n- ds_destroy(&reply);\n- return;\n+ if (unixctl_command_get_output_format(conn) == UNIXCTL_OUTPUT_FMT_JSON) {\n+ if (type == PMD_INFO_SHOW_STATS) {\n+ json_result = json_object_create();\n+ } else if (type == PMD_INFO_SLEEP_SHOW) {\n+ json_result = pmd_info_sleep_show_json(dp, pmd_list, n);\n+ free(pmd_list);\n+ ovs_mutex_unlock(&dp_netdev_mutex);\n+ unixctl_command_reply_json(conn, json_result);\n+ ds_destroy(&reply);\n+ return;\n+ }\n }\n \n for (size_t i = 0; i < n; i++) {\n@@ -1492,7 +1600,16 @@ dpif_netdev_pmd_info(struct unixctl_conn *conn, int argc, const char *argv[],\n } else if (type == PMD_INFO_CLEAR_STATS) {\n pmd_perf_stats_clear(&pmd->perf_stats);\n } else if (type == PMD_INFO_SHOW_STATS) {\n- pmd_info_show_stats(&reply, pmd);\n+ if (json_result) {\n+ bool is_main = pmd->core_id == NON_PMD_CORE_ID;\n+ char *key = is_main\n+ ? xstrdup(\"main\")\n+ : xasprintf(\"pmd-c%02u\", pmd->core_id);\n+ json_object_put_nocopy(json_result, key,\n+ pmd_info_show_stats_json(pmd));\n+ } else {\n+ pmd_info_show_stats(&reply, pmd);\n+ }\n } else if (type == PMD_INFO_PERF_SHOW) {\n pmd_info_show_perf(&reply, pmd, (struct pmd_perf_params *)aux);\n } else if (type == PMD_INFO_SLEEP_SHOW) {\n@@ -1510,7 +1627,11 @@ dpif_netdev_pmd_info(struct unixctl_conn *conn, int argc, const char *argv[],\n \n ovs_mutex_unlock(&dp_netdev_mutex);\n \n- unixctl_command_reply(conn, ds_cstr(&reply));\n+ if (json_result) {\n+ unixctl_command_reply_json(conn, json_result);\n+ } else {\n+ unixctl_command_reply(conn, ds_cstr(&reply));\n+ }\n ds_destroy(&reply);\n }\n \ndiff --git a/tests/pmd.at b/tests/pmd.at\nindex 702c9b950..4d442b0a6 100644\n--- a/tests/pmd.at\n+++ b/tests/pmd.at\n@@ -490,6 +490,79 @@ pmd thread numa_id <cleared> core_id <cleared>:\n miss with failed upcall: 0\n ])\n \n+dnl Check JSON output.\n+dnl Mask dynamic values: core id, cycle counts and percentages,\n+dnl cycles-per-packet, processing-cycles-per-packet,\n+dnl and packets-per-output-batch.\n+AT_CHECK([ovs-appctl --format json --pretty dpif-netdev/pmd-stats-show | dnl\n+ sed 's/\"pmd-c[[0-9]][[0-9]]\"/\"pmd-c<cleared>\"/g' | dnl\n+ sed 's/\"core\": [[0-9]][[0-9]]*/\"core\": <cleared>/g' | dnl\n+ sed 's/\"count\": [[0-9]][[0-9]]*/\"count\": <cleared>/g' | dnl\n+ sed 's/\"percentage\": [[0-9.]][[0-9.]]*/\"percentage\": <cleared>/g' | dnl\n+ sed 's/\"cycles-per-packet\": [[0-9.]][[0-9.]]*/\"cycles-per-packet\": <cleared>/g' | dnl\n+ sed 's/\"packets-per-output-batch\": [[0-9.]][[0-9.]]*/\"packets-per-output-batch\": <cleared>/g' | dnl\n+ sed 's/\"processing-cycles-per-packet\": [[0-9.]][[0-9.]]*/\"processing-cycles-per-packet\": <cleared>/g'], [0], [dnl\n+{\n+ \"main\": {\n+ \"averages\": {\n+ \"cycles-per-packet\": <cleared>,\n+ \"datapath-passes-per-packet\": 0.0,\n+ \"packets-per-output-batch\": <cleared>,\n+ \"processing-cycles-per-packet\": <cleared>,\n+ \"subtable-lookups-per-megaflow-hit\": 0.0},\n+ \"core\": null,\n+ \"cycles\": {\n+ \"idle\": {\n+ \"count\": <cleared>,\n+ \"percentage\": <cleared>},\n+ \"processing\": {\n+ \"count\": <cleared>,\n+ \"percentage\": <cleared>}},\n+ \"flow-cache-hits\": {\n+ \"exact\": 0,\n+ \"megaflow\": 0,\n+ \"miniflow-extract\": 0,\n+ \"partial-hardware-offload\": 0,\n+ \"signature\": 0,\n+ \"simple\": 0},\n+ \"numa\": null,\n+ \"packets\": {\n+ \"received\": 0,\n+ \"recirculated\": 0},\n+ \"upcalls\": {\n+ \"failure\": 0,\n+ \"success\": 0}},\n+ \"pmd-c<cleared>\": {\n+ \"averages\": {\n+ \"cycles-per-packet\": <cleared>,\n+ \"datapath-passes-per-packet\": 1.0,\n+ \"packets-per-output-batch\": <cleared>,\n+ \"processing-cycles-per-packet\": <cleared>,\n+ \"subtable-lookups-per-megaflow-hit\": 0.0},\n+ \"core\": <cleared>,\n+ \"cycles\": {\n+ \"idle\": {\n+ \"count\": <cleared>,\n+ \"percentage\": <cleared>},\n+ \"processing\": {\n+ \"count\": <cleared>,\n+ \"percentage\": <cleared>}},\n+ \"flow-cache-hits\": {\n+ \"exact\": 19,\n+ \"megaflow\": 0,\n+ \"miniflow-extract\": 0,\n+ \"partial-hardware-offload\": 0,\n+ \"signature\": 0,\n+ \"simple\": 0},\n+ \"numa\": 0,\n+ \"packets\": {\n+ \"received\": 20,\n+ \"recirculated\": 0},\n+ \"upcalls\": {\n+ \"failure\": 0,\n+ \"success\": 1}}}\n+])\n+\n OVS_VSWITCHD_STOP\n AT_CLEANUP\n \n", "prefixes": [ "ovs-dev", "v2", "4/5" ] }