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{
    "id": 135049,
    "url": "http://patchwork.dpdk.org/api/patches/135049/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20231212042517.164353-2-artemyko@nvidia.com/",
    "project": {
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        "url": "http://patchwork.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
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    "msgid": "<20231212042517.164353-2-artemyko@nvidia.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20231212042517.164353-2-artemyko@nvidia.com",
    "date": "2023-12-12T04:25:12",
    "name": "[1/5] app/test-pm: add multiprocess test",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "5790d1c866605d9d17cb0798cab9674a373a609e",
    "submitter": {
        "id": 3172,
        "url": "http://patchwork.dpdk.org/api/people/3172/?format=api",
        "name": "Artemy Kovalyov",
        "email": "artemyko@nvidia.com"
    },
    "delegate": {
        "id": 1,
        "url": "http://patchwork.dpdk.org/api/users/1/?format=api",
        "username": "tmonjalo",
        "first_name": "Thomas",
        "last_name": "Monjalon",
        "email": "thomas@monjalon.net"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20231212042517.164353-2-artemyko@nvidia.com/mbox/",
    "series": [
        {
            "id": 30517,
            "url": "http://patchwork.dpdk.org/api/series/30517/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=30517",
            "date": "2023-12-12T04:25:12",
            "name": "addressing races in concurrent process startup",
            "version": 1,
            "mbox": "http://patchwork.dpdk.org/series/30517/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/patches/135049/comments/",
    "check": "warning",
    "checks": "http://patchwork.dpdk.org/api/patches/135049/checks/",
    "tags": {},
    "related": [],
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        "From": "Artemy Kovalyov <artemyko@nvidia.com>",
        "To": "<dev@dpdk.org>",
        "CC": "Thomas Monjalon <thomas@monjalon.net>, Anatoly Burakov\n <anatoly.burakov@intel.com>",
        "Subject": "[PATCH 1/5] app/test-pm: add multiprocess test",
        "Date": "Tue, 12 Dec 2023 06:25:12 +0200",
        "Message-ID": "<20231212042517.164353-2-artemyko@nvidia.com>",
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    "content": "This commit adds a test scenario that initiates multiple processes\nconcurrently. These processes attach to the same shared heap, with an\nautomatic detection mechanism to identify the primary process.\n\nSigned-off-by: Artemy Kovalyov <artemyko@nvidia.com>\n---\n app/meson.build         |  1 +\n app/test-mp/main.c      | 49 +++++++++++++++++++++++++++++++++++++++++++++++++\n app/test-mp/meson.build |  8 ++++++++\n app/test-mp/run.sh      | 39 +++++++++++++++++++++++++++++++++++++++\n 4 files changed, 97 insertions(+)\n create mode 100644 app/test-mp/main.c\n create mode 100644 app/test-mp/meson.build\n create mode 100755 app/test-mp/run.sh",
    "diff": "diff --git a/app/meson.build b/app/meson.build\nindex 8aaed59..1b80091 100644\n--- a/app/meson.build\n+++ b/app/meson.build\n@@ -30,6 +30,7 @@ apps = [\n         'test-flow-perf',\n         'test-gpudev',\n         'test-mldev',\n+        'test-mp',\n         'test-pipeline',\n         'test-pmd',\n         'test-regex',\ndiff --git a/app/test-mp/main.c b/app/test-mp/main.c\nnew file mode 100644\nindex 0000000..0a0fbbf\n--- /dev/null\n+++ b/app/test-mp/main.c\n@@ -0,0 +1,49 @@\n+#include <stdio.h>\n+#include <string.h>\n+\n+#include <rte_malloc.h>\n+#include <rte_launch.h>\n+#include <rte_eal.h>\n+\n+rte_atomic32_t g_count;\n+\n+static int\n+done(const struct rte_mp_msg *msg __rte_unused, const void *arg __rte_unused)\n+{\n+\trte_atomic32_dec(&g_count);\n+\treturn 0;\n+}\n+\n+int\n+main(int argc, char **argv)\n+{\n+\tvoid *p;\n+\tint ret;\n+\n+\tret = rte_eal_init(argc, argv);\n+\tassert(ret >= 0);\n+\n+\trte_atomic32_set(&g_count, atoi(argv[++ret]));\n+\n+\tif (rte_eal_process_type() == RTE_PROC_PRIMARY) {\n+\t\tret = rte_mp_action_register(\"done\", done);\n+\t\tassert(ret == 0);\n+\t}\n+\n+\tp = rte_malloc(NULL, 0x1000000, 0x1000);\n+\tassert(p);\n+\n+\tif (rte_eal_process_type() == RTE_PROC_PRIMARY) {\n+\t\tuint64_t timeout = rte_rdtsc() + 5 * rte_get_tsc_hz();\n+\n+\t\twhile (rte_atomic32_read(&g_count) > 0)\n+\t\t\tassert(rte_rdtsc() < timeout);\n+\t} else {\n+\t\tstruct rte_mp_msg msg = { .name = \"done\" };\n+\n+\t\trte_mp_sendmsg(&msg);\n+\t}\n+\n+\trte_eal_cleanup();\n+\treturn 0;\n+}\ndiff --git a/app/test-mp/meson.build b/app/test-mp/meson.build\nnew file mode 100644\nindex 0000000..feb9e20\n--- /dev/null\n+++ b/app/test-mp/meson.build\n@@ -0,0 +1,8 @@\n+if is_windows\n+    build = false\n+    reason = 'not supported on Windows'\n+    subdir_done()\n+endif\n+\n+sources = files('main.c')\n+deps = ['eal'] # , 'mempool', 'net', 'mbuf', 'ethdev', 'cmdline']\ndiff --git a/app/test-mp/run.sh b/app/test-mp/run.sh\nnew file mode 100755\nindex 0000000..8de07e2\n--- /dev/null\n+++ b/app/test-mp/run.sh\n@@ -0,0 +1,39 @@\n+#!/bin/bash\n+\n+logdir=/tmp/dpdk_test_mp\n+repeat=1\n+lastcore=$(($(nproc) - 1))\n+log=1\n+\n+while getopts p:r:lL:d op; do case $op in\n+    p) lastcore=$OPTARG ;;\n+    r) repeat=$OPTARG ;;\n+    L) logdir=$OPTARG ;;\n+    l) log=0 ;;\n+    d) debug=1 ;;\n+esac done\n+shift $((OPTIND-1))\n+\n+test=$1\n+logpath=$logdir/$(date +%y%m%d-%H%M%S)\n+\n+rm -f core.*\n+pkill dpdk-test-mp\n+\n+for j in $(seq $repeat) ; do\n+    [ $log ] && mkdir -p $logpath/$j\n+    for i in $(seq 0 $lastcore) ; do\n+\targs=\"-l $i --file-prefix=dpdk1 --proc-type=auto\"\n+\tif [ $debug ] ; then\n+\t    args=\"$args --log-level=lib.eal:8\"\n+\tfi\n+\tif [ $log ] ; then\n+\t    $test $args $lastcore >$logpath/$j/$i.log 2>&1 &\n+\telse\n+\t    $test $args $lastcore &\n+\tfi\n+    done\n+    wait || break\n+    [ $(ls core.* 2>/dev/null | wc -l) -gt 0 ] && break\n+    echo iteration $j passed\n+done\n",
    "prefixes": [
        "1/5"
    ]
}