#0: Improve test_pgm_dispatch

Add the current clock frequency to the output so we can detect throttling more easily.

Also do CloseDevice on some early returns, so later tests that attempt to use the same device don't run into problems.

tests/tt_metal/tt_metal/perf_microbenchmark/dispatch/test_pgm_dispatch.cpp

@@ -11,6 +11,7 @@
 #include <tt-metalium/device.hpp>
 #include <tt-metalium/rtoptions.hpp>
 #include <benchmark/benchmark.h>
+#include "tt_metal/tt_metal/perf_microbenchmark/common/util.hpp"
 
 constexpr uint32_t DEFAULT_ITERATIONS = 10000;
 constexpr uint32_t DEFAULT_WARMUP_ITERATIONS = 100;
@@ -344,12 +345,14 @@ static int pgm_dispatch(T& state, TestInfo info) {
             if constexpr (std::is_same_v<T, benchmark::State>) {
                 state.SkipWithError("Program creation failed");
             }
+            tt_metal::CloseDevice(device);
             return 1;
         }
         if (!initialize_program(info, device, program[1], info.fast_kernel_cycles)) {
             if constexpr (std::is_same_v<T, benchmark::State>) {
                 state.SkipWithError("Program creation failed");
             }
+            tt_metal::CloseDevice(device);
             return 1;
         }
 
@@ -403,6 +406,7 @@ static int pgm_dispatch(T& state, TestInfo info) {
         if constexpr (std::is_same_v<T, benchmark::State>) {
             state.counters["IterationTime"] = benchmark::Counter(
                 info.iterations, benchmark::Counter::kIsIterationInvariantRate | benchmark::Counter::kInvert);
+            state.counters["Clock"] = benchmark::Counter(get_tt_npu_clock(device), benchmark::Counter::kDefaults);
         }
 
         pass &= tt_metal::CloseDevice(device);