Adding support for generic counter_raw_values performance counter type

examples/performance_counters/simplest_performance_counter.cpp

@@ -18,6 +18,7 @@ std::atomic<std::int64_t> counter(0);
 
 std::int64_t some_performance_data(bool reset)
 {
+    ++counter;
     return hpx::util::get_and_reset_value(counter, reset);
 }
 

hpx/include/performance_counters.hpp

@@ -1,4 +1,4 @@
-//  Copyright (c) 2007-2017 Hartmut Kaiser
+//  Copyright (c) 2007-2018 Hartmut Kaiser
 //  Copyright (c)      2011 Bryce Lelbach
 //
 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
@@ -14,6 +14,7 @@
 #include <hpx/performance_counters/manage_counter_type.hpp>
 #include <hpx/performance_counters/performance_counter.hpp>
 #include <hpx/performance_counters/performance_counter_set.hpp>
+#include <hpx/util/get_and_reset_value.hpp>
 
 #endif
 

hpx/performance_counters/counter_creators.hpp

@@ -15,6 +15,7 @@
 
 #include <cstdint>
 #include <string>
+#include <vector>
 
 ///////////////////////////////////////////////////////////////////////////////
 namespace hpx { namespace performance_counters
@@ -106,6 +107,11 @@ namespace hpx { namespace performance_counters
         counter_info const&, hpx::util::function_nonser<std::int64_t(bool)> const&,
         error_code&);
 
+    HPX_API_EXPORT naming::gid_type locality_raw_values_counter_creator(
+        counter_info const&,
+        hpx::util::function_nonser<std::vector<std::int64_t>(bool)> const&,
+        error_code&);
+
     ///////////////////////////////////////////////////////////////////////////
     /// Creation function for raw counters. The passed function is encapsulating
     /// the actual value to monitor. This function checks the validity of the

hpx/performance_counters/counters.hpp

@@ -153,7 +153,15 @@ namespace hpx { namespace performance_counters
         /// and upper boundaries, and the size of the histogram buckets. All
         /// remaining values in the returned array represent the number of
         /// measurements for each of the buckets in the histogram.
-        counter_histogram
+        counter_histogram,
+
+        /// \a counter_raw_values exposes an array of measured values
+        /// instead of a single value as many of the other counter types.
+        /// Counters of this type expose a \a counter_value_array instead of a
+        /// \a counter_value. Those will also not implement the
+        /// \a get_counter_value() functionality. The results are exposed
+        /// through a separate \a get_counter_values_array() function.
+        counter_raw_values
     };
 #endif
 

hpx/performance_counters/counters_fwd.hpp

@@ -124,7 +124,15 @@ namespace hpx { namespace performance_counters
         // and upper boundaries, and the size of the histogram buckets. All
         // remaining values in the returned array represent the number of
         // measurements for each of the buckets in the histogram.
-        counter_histogram
+        counter_histogram,
+
+        /// \a counter_raw_values exposes an array of measured values
+        /// instead of a single value as many of the other counter types.
+        /// Counters of this type expose a \a counter_value_array instead of a
+        /// \a counter_value. Those will also not implement the
+        /// \a get_counter_value() functionality. The results are exposed
+        /// through a separate \a get_counter_values_array() function.
+        counter_raw_values
     };
 
     ///////////////////////////////////////////////////////////////////////////

hpx/performance_counters/manage_counter_type.hpp

@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////////////
-//  Copyright (c) 2007-2013 Hartmut Kaiser
+//  Copyright (c) 2007-2018 Hartmut Kaiser
 //  Copyright (c) 2011 Bryce Adelstein-Lelbach
 //
 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
@@ -19,6 +19,7 @@
 #include <cstddef>
 #include <cstdint>
 #include <string>
+#include <vector>
 
 namespace hpx { namespace performance_counters
 {
@@ -68,6 +69,55 @@ namespace hpx { namespace performance_counters
         std::string const& helptext = "", std::string const& uom = "",
         error_code& ec = throws);
 
+    /// Install a new generic performance counter type returning an
+    /// array of values in a way, that will uninstall it automatically during
+    /// shutdown.
+    ///
+    /// The function \a install_counter_type will register a new generic
+    /// counter type that returns an array of values based on the provided
+    /// function. The counter
+    /// type will be automatically unregistered during system shutdown. Any
+    /// consumer querying any instance of this this counter type will cause the
+    /// provided function to be called and the returned array value to be
+    /// exposed as the counter value.
+    ///
+    /// The counter type is registered such that there can be one counter
+    /// instance per locality. The expected naming scheme for the counter
+    /// instances is: \c '/objectname{locality#<*>/total}/countername' where
+    /// '<*>' is a zero based integer identifying the locality the counter
+    /// is created on.
+    ///
+    /// \param name   [in] The global virtual name of the counter type. This
+    ///               name is expected to have the format /objectname/countername.
+    /// \param counter_value [in] The function to call whenever the counter
+    ///               value (array of values) is requested by a consumer.
+    /// \param helptext [in, optional] A longer descriptive text shown to the
+    ///               user to explain the nature of the counters created from
+    ///               this type.
+    /// \param uom    [in] The unit of measure for the new performance counter
+    ///               type.
+    /// \param ec     [in,out] this represents the error status on exit,
+    ///               if this is pre-initialized to \a hpx#throws
+    ///               the function will throw on error instead.
+    ///
+    /// \note As long as \a ec is not pre-initialized to \a hpx::throws this
+    ///       function doesn't throw but returns the result code using the
+    ///       parameter \a ec. Otherwise it throws an instance of hpx::exception.
+    ///
+    /// \returns      If successful, this function returns \a status_valid_data,
+    ///               otherwise it will either throw an exception or return an
+    ///               error_code from the enum \a counter_status (also, see
+    ///               note related to parameter \a ec).
+    ///
+    /// \note The counter type registry is a locality based service. You will
+    ///       have to register each counter type on every locality where a
+    ///       corresponding performance counter will be created.
+    HPX_EXPORT counter_status install_counter_type(std::string const& name,
+        hpx::util::function_nonser<std::vector<std::int64_t>(bool)> const&
+            counter_value,
+        std::string const& helptext = "", std::string const& uom = "",
+        error_code& ec = throws);
+
     /// \brief Install a new performance counter type in a way, which will
     ///        uninstall it automatically during shutdown.
     ///

hpx/util/get_and_reset_value.hpp

@@ -8,6 +8,7 @@
 
 #include <atomic>
 #include <cstdint>
+#include <vector>
 
 namespace hpx { namespace util
 {
@@ -36,6 +37,16 @@ namespace hpx { namespace util
             value.store(0);
         return result;
     }
+
+    inline std::vector<std::int64_t> get_and_reset_value(
+        std::vector<std::int64_t>& value, bool reset)
+    {
+        std::vector<std::int64_t> result = value;
+        if (reset)
+            value.clear();
+
+        return result;
+    }
 }}
 
 #endif

src/performance_counters/counter_creators.cpp

@@ -18,6 +18,7 @@
 
 #include <cstdint>
 #include <string>
+#include <vector>
 
 ///////////////////////////////////////////////////////////////////////////////
 namespace hpx { namespace performance_counters
@@ -446,6 +447,33 @@ namespace hpx { namespace performance_counters
         return naming::invalid_gid;
     }
 
+    naming::gid_type locality_raw_values_counter_creator(counter_info const& info,
+        hpx::util::function_nonser<std::vector<std::int64_t>(bool)> const& f,
+        error_code& ec)
+    {
+        // verify the validity of the counter instance name
+        counter_path_elements paths;
+        get_counter_path_elements(info.fullname_, paths, ec);
+        if (ec) return naming::invalid_gid;
+
+        if (paths.parentinstance_is_basename_) {
+            HPX_THROWS_IF(ec, bad_parameter,
+                "locality_raw_values_counter_creator",
+                    "invalid counter instance parent name: " +
+                    paths.parentinstancename_);
+            return naming::invalid_gid;
+        }
+
+        if (paths.instancename_ == "total" && paths.instanceindex_ == -1)
+        {
+            return detail::create_raw_counter(info, f, ec);   // overall counter
+        }
+
+        HPX_THROWS_IF(ec, bad_parameter, "locality_raw_values_counter_creator",
+            "invalid counter instance name: " + paths.instancename_);
+        return naming::invalid_gid;
+    }
+
     namespace detail
     {
         naming::gid_type retrieve_agas_counter(std::string const& name,

src/performance_counters/counters.cpp

@@ -601,12 +601,13 @@ namespace hpx { namespace performance_counters
             "counter_average_timer",
             "counter_elapsed_time",
             "counter_histogram",
+            "counter_raw_values",
         };
     }
 
     char const* get_counter_type_name(counter_type type)
     {
-        if (type < counter_text || type > counter_histogram)
+        if (type < counter_text || type > counter_raw_values)
             return "unknown";
         return strings::counter_type_names[type];
     }

src/performance_counters/manage_counter_type.cpp

@@ -21,6 +21,7 @@
 #include <cstdint>
 #include <memory>
 #include <string>
+#include <vector>
 
 namespace hpx { namespace performance_counters
 {
@@ -140,6 +141,21 @@ namespace hpx { namespace performance_counters
             HPX_PERFORMANCE_COUNTER_V1, uom, ec);
     }
 
+    counter_status install_counter_type(std::string const& name,
+        hpx::util::function_nonser<std::vector<std::int64_t>(bool)> const&
+            counter_value,
+        std::string const& helptext, std::string const& uom, error_code& ec)
+    {
+        using hpx::util::placeholders::_1;
+        using hpx::util::placeholders::_2;
+        return install_counter_type(name, counter_raw_values, helptext,
+            util::bind(
+                &hpx::performance_counters::locality_raw_values_counter_creator,
+                _1, counter_value, _2),
+            &hpx::performance_counters::locality_counter_discoverer,
+            HPX_PERFORMANCE_COUNTER_V1, uom, ec);
+    }
+
     /// Install several new performance counter types in a way, which will
     /// uninstall them automatically during shutdown.
     void install_counter_types(generic_counter_type_data const* data,

src/performance_counters/performance_counter_set.cpp

@@ -269,8 +269,11 @@ namespace hpx { namespace performance_counters
         // reset all performance counters
         for (std::size_t i = 0; i != ids.size(); ++i)
         {
-            if (infos_[i].type_ == counter_histogram)
+            if (infos_[i].type_ == counter_histogram ||
+                infos_[i].type_ == counter_raw_values)
+            {
                 continue;
+            }
 
             using performance_counters::stubs::performance_counter;
             v.push_back(performance_counter::get_value(
@@ -311,8 +314,11 @@ namespace hpx { namespace performance_counters
         // reset all performance counters
         for (std::size_t i = 0; i != ids.size(); ++i)
         {
-            if (infos_[i].type_ != counter_histogram)
+            if (infos_[i].type_ != counter_histogram &&
+                infos_[i].type_ != counter_raw_values)
+            {
                 continue;
+            }
 
             using performance_counters::stubs::performance_counter;
             v.push_back(performance_counter::get_values_array(

src/performance_counters/registry.cpp

@@ -488,12 +488,14 @@ namespace hpx { namespace performance_counters
         }
 
         // make sure the counter type requested is supported
-        if (counter_histogram != (*it).second.info_.type_ ||
-            counter_histogram != info.type_)
+        if (!((counter_histogram == (*it).second.info_.type_ &&
+               counter_histogram == info.type_) ||
+              (counter_raw_values == (*it).second.info_.type_ &&
+               counter_raw_values == info.type_)))
         {
             HPX_THROWS_IF(ec, bad_parameter, "registry::create_raw_counter",
                 "invalid counter type requested (only counter_histogram "
-                "is supported)");
+                "or counter_raw_values is supported)");
             return status_counter_type_unknown;
         }
 

src/performance_counters/server/raw_values_counter.cpp

@@ -33,10 +33,13 @@ namespace hpx { namespace performance_counters { namespace server
             hpx::util::function_nonser<std::vector<std::int64_t>(bool)> f)
       : base_type_holder(info), f_(std::move(f)), reset_(false)
     {
-        if (info.type_ != counter_histogram) {
+        if (info.type_ != counter_histogram &&
+            info.type_ != counter_raw_values)
+        {
             HPX_THROW_EXCEPTION(bad_parameter,
                 "raw_values_counter::raw_values_counter",
-                "unexpected counter type specified for raw_values_counter");
+                "unexpected counter type specified for raw_values_counter "
+                    "should be counter_histogram or counter_raw_values");
         }
     }
 

src/util/query_counters.cpp

@@ -267,8 +267,12 @@ namespace hpx { namespace util
                 // now print array value counters
                 for (std::size_t i = 0; i != infos.size(); ++i)
                 {
-                    if (infos[i].type_ != performance_counters::counter_histogram)
+                    if (infos[i].type_ != performance_counters::counter_histogram &&
+                        infos[i].type_ != performance_counters::counter_raw_values)
+                    {
                         continue;
+                    }
+
                     if (!first)
                         output << ",";
                     first = false;
@@ -294,8 +298,12 @@ namespace hpx { namespace util
                 // now print array value counters
                 for (std::size_t i = 0; i != counter_shortnames_.size(); ++i)
                 {
-                    if (infos[i].type_ != performance_counters::counter_histogram)
+                    if (infos[i].type_ != performance_counters::counter_histogram &&
+                        infos[i].type_ != performance_counters::counter_raw_values)
+                    {
                         continue;
+                    }
+
                     if (!first)
                         output << ",";
                     first = false;
@@ -411,8 +419,12 @@ namespace hpx { namespace util
 
         for (std::size_t i = 0; i != infos.size(); ++i)
         {
-            if (infos[i].type_ == performance_counters::counter_histogram)
+            if (infos[i].type_ == performance_counters::counter_histogram ||
+                infos[i].type_ == performance_counters::counter_raw_values)
+            {
                 continue;
+            }
+
             indicies.push_back(i);
         }
 
@@ -461,8 +473,12 @@ namespace hpx { namespace util
 
         for (std::size_t i = 0; i != infos.size(); ++i)
         {
-            if (infos[i].type_ != performance_counters::counter_histogram)
+            if (infos[i].type_ != performance_counters::counter_histogram &&
+                infos[i].type_ != performance_counters::counter_raw_values)
+            {
                 continue;
+            }
+
             indicies.push_back(i);
         }
 

tests/unit/performance_counter/CMakeLists.txt

@@ -1,10 +1,11 @@
-# Copyright (c) 2007-2012 Hartmut Kaiser
+# Copyright (c) 2007-2018 Hartmut Kaiser
 #
 # Distributed under the Boost Software License, Version 1.0. (See accompanying
 # file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
 set(tests
     all_counters
+    counter_raw_values
     path_elements)
 
 foreach(test ${tests})