diff --git a/tests/convperf.cxx b/tests/convperf.cxx
new file mode 100644
index 0000000..6158b2d
--- /dev/null
+++ b/tests/convperf.cxx
@@ -0,0 +1,206 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include <rfb/PixelFormat.h>
+
+#include "util.h"
+
+static const int tile = 64;
+static const int fbsize = 4096;
+
+static rdr::U8 *fb1, *fb2;
+
+typedef void (*testfn) (rfb::PixelFormat&, rfb::PixelFormat&, rdr::U8*, rdr::U8*);
+
+struct TestEntry {
+  const char *label;
+  testfn fn;
+};
+
+static void testMemcpy(rfb::PixelFormat &dstpf, rfb::PixelFormat &srcpf,
+                       rdr::U8 *dst, rdr::U8 *src)
+{
+  int h;
+  h = tile;
+  while (h--) {
+    memcpy(dst, src, tile * dstpf.bpp/8);
+    dst += fbsize * dstpf.bpp/8;
+    src += fbsize * dstpf.bpp/8;
+  }
+}
+
+static void testBuffer(rfb::PixelFormat &dstpf, rfb::PixelFormat &srcpf,
+                       rdr::U8 *dst, rdr::U8 *src)
+{
+  dstpf.bufferFromBuffer(dst, srcpf, src, tile, tile, fbsize, fbsize);
+}
+
+static void testToRGB(rfb::PixelFormat &dstpf, rfb::PixelFormat &srcpf,
+                      rdr::U8 *dst, rdr::U8 *src)
+{
+  srcpf.rgbFromBuffer(dst, src, tile, fbsize, tile);
+}
+
+static void testFromRGB(rfb::PixelFormat &dstpf, rfb::PixelFormat &srcpf,
+                        rdr::U8 *dst, rdr::U8 *src)
+{
+  dstpf.bufferFromRGB(dst, src, tile, fbsize, tile);
+}
+
+static void doTest(testfn fn, rfb::PixelFormat &dstpf, rfb::PixelFormat &srcpf)
+{
+  startCpuCounter();
+
+  for (int i = 0;i < 10000;i++) {
+    int x, y;
+    rdr::U8 *dst, *src;
+    x = rand() % (fbsize - tile);
+    y = rand() % (fbsize - tile);
+    dst = fb1 + (x + y * fbsize) * dstpf.bpp/8;
+    src = fb2 + (x + y * fbsize) * srcpf.bpp/8;
+    fn(dstpf, srcpf, dst, src);
+  }
+
+  endCpuCounter();
+
+  float data, time;
+
+  data = (double)tile * tile * 10000;
+  time = getCpuCounter();
+
+  printf("%g", data / (1000.0*1000.0) / time);
+}
+
+struct TestEntry tests[] = {
+  {"memcpy", testMemcpy},
+  {"bufferFromBuffer", testBuffer},
+  {"rgbFromBuffer", testToRGB},
+  {"bufferFromRGB", testFromRGB},
+};
+
+static void doTests(rfb::PixelFormat &dstpf, rfb::PixelFormat &srcpf)
+{
+  int i;
+  char dstb[256], srcb[256];
+
+  dstpf.print(dstb, sizeof(dstb));
+  srcpf.print(srcb, sizeof(srcb));
+
+  printf("%s,%s", srcb, dstb);
+
+  for (i = 0;i < sizeof(tests)/sizeof(tests[0]);i++) {
+    printf(",");
+    doTest(tests[i].fn, dstpf, srcpf);
+  }
+
+  printf("\n");
+}
+
+int main(int argc, char **argv)
+{
+  int bufsize;
+
+  time_t t;
+  char datebuffer[256];
+
+  int i;
+
+  bufsize = fbsize * fbsize * 4;
+
+  fb1 = new rdr::U8[bufsize];
+  fb2 = new rdr::U8[bufsize];
+
+  for (int i = 0;i < bufsize;i++) {
+    fb1[i] = rand();
+    fb2[i] = rand();
+  }
+
+  time(&t);
+  strftime(datebuffer, sizeof(datebuffer), "%Y-%m-%d %H:%M UTC", gmtime(&t));
+
+  printf("# Pixel Conversion Performance Test %s\n", datebuffer);
+  printf("#\n");
+  printf("# Frame buffer: %dx%d pixels\n", fbsize, fbsize);
+  printf("# Tile size: %dx%d pixels\n", tile, tile);
+  printf("#\n");
+  printf("# Note: Results are Mpixels/sec\n");
+  printf("#\n");
+
+  printf("Source format,Destination Format");
+  for (i = 0;i < sizeof(tests)/sizeof(tests[0]);i++)
+    printf(",%s", tests[i].label);
+  printf("\n");
+
+  rfb::PixelFormat dstpf, srcpf;
+
+  /* rgb888 targets */
+
+  printf("\n");
+
+  dstpf.parse("rgb888");
+
+  srcpf.parse("rgb888");
+  doTests(dstpf, srcpf);
+
+  srcpf.parse("bgr888");
+  doTests(dstpf, srcpf);
+
+  srcpf.parse("rgb565");
+  doTests(dstpf, srcpf);
+
+  srcpf.parse("rgb232");
+  doTests(dstpf, srcpf);
+
+  /* rgb565 targets */
+
+  printf("\n");
+
+  dstpf.parse("rgb565");
+
+  srcpf.parse("rgb888");
+  doTests(dstpf, srcpf);
+
+  srcpf.parse("bgr565");
+  doTests(dstpf, srcpf);
+
+  srcpf.parse("rgb232");
+  doTests(dstpf, srcpf);
+
+  /* rgb232 targets */
+
+  printf("\n");
+
+  dstpf.parse("rgb232");
+
+  srcpf.parse("rgb888");
+  doTests(dstpf, srcpf);
+
+  srcpf.parse("rgb565");
+  doTests(dstpf, srcpf);
+
+  srcpf.parse("bgr232");
+  doTests(dstpf, srcpf);
+
+  /* rgb565 with endian conversion (both ways) */
+
+  printf("\n");
+
+  dstpf = rfb::PixelFormat(32, 24, false, true, 255, 255, 255, 0, 8, 16);
+  srcpf = rfb::PixelFormat(32, 24, true, true, 255, 255, 255, 0, 8, 16);
+
+  doTests(srcpf, dstpf);
+
+  doTests(dstpf, srcpf);
+
+  dstpf = rfb::PixelFormat(16, 16, false, true, 31, 63, 31, 0, 5, 11);
+  srcpf = rfb::PixelFormat(16, 16, true, true, 31, 63, 31, 0, 5, 11);
+
+  doTests(srcpf, dstpf);
+
+  doTests(dstpf, srcpf);
+
+  return 0;
+}
+