Notebook to test PYNQ MMIO speed

test_pynq_mmio_speed.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Test MMIO speed\n",
    "\n",
    "This notebook was run on PYNQ-Z2 running PYNQ v2.6\n",
    "\n",
    "13 July 2021"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "application/javascript": [
       "\n",
       "try {\n",
       "require(['notebook/js/codecell'], function(codecell) {\n",
       "  codecell.CodeCell.options_default.highlight_modes[\n",
       "      'magic_text/x-csrc'] = {'reg':[/^%%microblaze/]};\n",
       "  Jupyter.notebook.events.one('kernel_ready.Kernel', function(){\n",
       "      Jupyter.notebook.get_cells().map(function(cell){\n",
       "          if (cell.cell_type == 'code'){ cell.auto_highlight(); } }) ;\n",
       "  });\n",
       "});\n",
       "} catch (e) {};\n"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
     "data": {
      "application/javascript": [
       "\n",
       "try {\n",
       "require(['notebook/js/codecell'], function(codecell) {\n",
       "  codecell.CodeCell.options_default.highlight_modes[\n",
       "      'magic_text/x-csrc'] = {'reg':[/^%%pybind11/]};\n",
       "  Jupyter.notebook.events.one('kernel_ready.Kernel', function(){\n",
       "      Jupyter.notebook.get_cells().map(function(cell){\n",
       "          if (cell.cell_type == 'code'){ cell.auto_highlight(); } }) ;\n",
       "  });\n",
       "});\n",
       "} catch (e) {};\n"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "from pynq import Overlay\n",
    "import time\n",
    "\n",
    "ol = Overlay(\"base.bit\")\n",
    "\n",
    "microblaze_bram = ol.iop_arduino.mb_bram_ctrl"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Time MMIO transaction"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "MMIO WRITE: 0.0007576942443847656 seconds\n"
     ]
    }
   ],
   "source": [
    "start = time.time()\n",
    "microblaze_bram.write(0,0)\n",
    "end = time.time()\n",
    "timing= end-start\n",
    "print(\"MMIO WRITE: \" + str(timing) + \" seconds\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "MMIO READ: 0.0006608963012695312 seconds\n"
     ]
    }
   ],
   "source": [
    "start = time.time()\n",
    "microblaze_bram.read(0)\n",
    "end = time.time()\n",
    "timing= end-start\n",
    "print(\"MMIO READ: \" + str(timing) + \" seconds\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Alternative way to time a cell using the IPython [%%timeit](https://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-timeit) magic"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "10000 loops, best of 3: 22.3 µs per loop\n"
     ]
    }
   ],
   "source": [
    "%%timeit\n",
    "microblaze_bram.write(0,0)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "10000 loops, best of 3: 23.3 µs per loop\n"
     ]
    }
   ],
   "source": [
    "%%timeit\n",
    "microblaze_bram.read(0)"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.5"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}