The following code will print out how long a method takes, return it’s value, and print out how much memory it consumed.<\/p>\n
Example:<\/p>\n
\n[info] Elapsed time (solr): 1.207055231s (solr)\n[info] Memory: (solr): -33MB\n[info] Elapsed time (tokenize): 1.091507079s (tokenize)\n[info] Memory: (tokenize): -50MB\n[info] Elapsed time (df): 3.809766467s (df)\n[info] Memory: (df): -38MB\n[info] Elapsed time (vectors): 19.631056498s (vectors)\n[info] Memory: (vectors): -698MB\n<\/pre>\n\n val runtime = Runtime.getRuntime()\n val format = NumberFormat.getInstance()\n\n def time[R](name: String, block: => R): R = {\n val maxMemory1 = runtime.maxMemory()\n val allocatedMemory1 = runtime.totalMemory()\n val freeMemory1 = runtime.freeMemory()\n val totalFree1 = freeMemory1 + (maxMemory1 - allocatedMemory1)\n\n val t0 = System.nanoTime()\n val result = block\n val t1 = System.nanoTime()\n\n val maxMemory2 = runtime.maxMemory()\n val allocatedMemory2 = runtime.totalMemory()\n val freeMemory2 = runtime.freeMemory()\n val totalFree2 = freeMemory2 + (maxMemory2 - allocatedMemory2)\n\n println(\n \"Elapsed time (\" + name + \"): \" + (t1 - t0) \/ 1000000000.0 + \"s (\" + name + \")\" + \"\\n\" +\n \"Memory: (\" + name + \"): \" + format.format((totalFree2 - totalFree1) \/ 1024 \/ 1024) + \"MB\"\n )\n\n result\n }\n<\/pre>\n","protected":false},"excerpt":{"rendered":"Print out method timing + memory use in scala<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[4],"tags":[480],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t