CLICKHOUSEDOCS-466: EN docs for query_profiler* settings.

contrib/poco

@@ -1 +1 @@
-Subproject commit 2b273bfe9db89429b2040c024484dee0197e48c7
+Subproject commit 6216cc01a107ce149863411ca29013a224f80343

docs/en/operations/settings/settings.md

@@ -994,4 +994,45 @@ Lower values mean higher priority. Threads with low `nice` priority values are e
 
 Default value: 0.
 
+
+## query_profiler_real_time_period_ns {#query_profiler_real_time_period_ns}
+
+Sets the period for a real clock timer of the query profiler. Real clock timer counts wall-clock time.
+
+Possible values:
+
+- Positive integer number of nanoseconds.
+
+    Recommended values:
+        
+        - 10000000 (100 times a second) nanosecods and more for for single queries.
+        - 1000000000 (once a second) for cluster-wide profiling.
+
+- 0 for turning off the timer.
+
+Type: [UInt64](../../data_types/int_uint.md).
+
+Default value: 1000000000 nanoseconds.
+
+
+## query_profiler_cpu_time_period_ns {#query_profiler_cpu_time_period_ns}
+
+Sets the period for a CPU clock timer of the query profiler. Real clock timer counts CPU time.
+
+Possible values:
+
+- Positive integer number of nanoseconds.
+
+    Recommended values:
+        
+        - 10000000 (100 times a second) nanosecods and more for for single queries.
+        - 1000000000 (once a second) for cluster-wide profiling.
+
+- 0 for turning off the timer.
+
+Type: [UInt64](../../data_types/int_uint.md).
+
+Default value: 1000000000 nanoseconds.
+
+
 [Original article](https://clickhouse.yandex/docs/en/operations/settings/settings/) <!-- hide -->