[#XLOG_N_PER_MS]
= XLOG_N_PER_MS
:mrdocs:

Similar to XLOG(...) except only log at most

== Synopsis

Declared in `<folly/logging/xlog.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
#define XLOG_N_PER_MS(level, count, ms, ...)

----

== Description

The internal counters are process‐global and threadsafe.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *count*
| messages per
| *ms*
| millisecond interval.
| *level*
| The `folly::LogLevel` value at which to log.
|===


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