1 files changed, 69 insertions, 0 deletions
diff --git a/benchmarks/tail-latency/isam_buffer.cpp b/benchmarks/tail-latency/isam_buffer.cpp
new file mode 100644
index 0000000..8c063c8
--- /dev/null
+++ b/benchmarks/tail-latency/isam_buffer.cpp
@@ -0,0 +1,69 @@
+/*
+ *
+ */
+
+#define ENABLE_TIMER
+#define TS_TEST
+
+#include <thread>
+
+#include "file_util.h"
+#include "framework/interface/Record.h"
+#include "framework/structure/MutableBuffer.h"
+#include "shard/ISAMTree.h"
+#include "standard_benchmarks.h"
+
+#include "psu-util/timer.h"
+#include <gsl/gsl_rng.h>
+
+typedef de::Record<uint64_t, uint64_t> Rec;
+typedef de::ISAMTree<Rec> Shard;
+typedef de::MutableBuffer<Rec> Buffer;
+
+void usage(char *progname) {
+  fprintf(stderr, "%s reccnt datafile\n", progname);
+}
+
+int main(int argc, char **argv) {
+
+  if (argc < 3) {
+    usage(argv[0]);
+    exit(EXIT_FAILURE);
+  }
+
+  size_t n = atol(argv[1]);
+  std::string d_fname = std::string(argv[2]);
+
+  auto data = read_sosd_file<Rec>(d_fname, n);
+
+  std::vector<size_t> buffer_sizes = {4000,  8000,  12000, 16000,
+                                      20000, 40000, 80000, 160000, 320000};
+
+  TIMER_INIT();
+
+  size_t rec_idx = 0;
+
+  for (size_t bs : buffer_sizes) {
+    for (size_t j = 0; j < 20; j++) {
+      auto buffer = Buffer(bs, bs);
+
+      TIMER_START();
+      for (size_t i = 0; i < bs; i++) {
+        buffer.append(data[rec_idx++]);
+
+        if (rec_idx >= n) rec_idx = 0;
+      }
+      TIMER_STOP();
+
+      auto buffer_fill = TIMER_RESULT();
+
+      TIMER_START();
+      auto shard = Shard(buffer.get_buffer_view());
+      TIMER_STOP();
+
+      auto shard_const = TIMER_RESULT();
+
+      fprintf(stdout, "%ld\t%ld\t%ld\n", bs, buffer_fill, shard_const);
+    }
+  }
+}