[ovs-dev] [OVN Patch v16 3/3] ovn-northd: Add configuration option for parallel lflow build

anton.ivanov at cambridgegreys.com anton.ivanov at cambridgegreys.com
Tue Mar 30 09:16:47 UTC 2021


From: Anton Ivanov <anton.ivanov at cambridgegreys.com>

Signed-off-by: Anton Ivanov <anton.ivanov at cambridgegreys.com>
---
 northd/ovn-northd.c |  3 +++
 ovn-nb.xml          | 13 +++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
index eb5cbf832..e2232c53a 100644
--- a/northd/ovn-northd.c
+++ b/northd/ovn-northd.c
@@ -13207,6 +13207,9 @@ ovnnb_db_run(struct northd_context *ctx,
     northd_probe_interval_nb = get_probe_interval(ovnnb_db, nb);
     northd_probe_interval_sb = get_probe_interval(ovnsb_db, nb);
 
+    use_parallel_build = smap_get_bool(&nb->options,
+                                          "use_parallel_build", false) &&
+                          ovn_can_parallelize_hashes(false);
     use_logical_dp_groups = smap_get_bool(&nb->options,
                                           "use_logical_dp_groups", false);
     /* deprecated, use --event instead */
diff --git a/ovn-nb.xml b/ovn-nb.xml
index b0a4adffe..98608a475 100644
--- a/ovn-nb.xml
+++ b/ovn-nb.xml
@@ -213,6 +213,19 @@
           The default value is <code>false</code>.
         </p>
       </column>
+      <column name="options" key="use_parallel_build">
+        <p>
+          If set to <code>true</code>, <code>ovn-northd</code> will attempt
+          to compute logical flows in parallel.
+        </p>
+        <p>
+          Parallel computation is enabled only if the system has 4 or more
+          cores/threads available to be used by ovn-northd.
+        </p>
+        <p>
+          The default value is <code>false</code>.
+        </p>
+      </column>
 
       <column name="options" key="ignore_lsp_down">
         <p>
-- 
2.20.1



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