gistfile1.txt

var fs  = require("fs");
    sys = require("sys");

if (process.platform.toLowerCase().indexOf("linux") == -1) 
    throw new Error("unsupported platform");

setInterval(function () {
    fs.readFile("/proc/" + process.pid + "/status", function (err, data) {
        if (err) {
            sys.puts(err);
            return;
        }

        var match = data.match(/^VmHWM:\s+(\d+)\s+kB$/m),
            value = match ? match[1] : 0;

        sys.puts("peak rss: " + value);
        sys.puts("from node: " + JSON.stringify(process.memoryUsage()));
    });
}, 1000);

gistfile2.txt

peak rss: 5068
from node: {"rss":5394432,"vsize":41553920,"heapTotal":2200320,"heapUsed":1066196}
peak rss: 5324
from node: {"rss":5451776,"vsize":41553920,"heapTotal":1676032,"heapUsed":1089868}
peak rss: 5328
from node: {"rss":5455872,"vsize":41553920,"heapTotal":1676032,"heapUsed":1094656}
peak rss: 5332
from node: {"rss":5459968,"vsize":41553920,"heapTotal":1676032,"heapUsed":1098660}
peak rss: 5336
from node: {"rss":5464064,"vsize":41553920,"heapTotal":1676032,"heapUsed":1102684}
peak rss: 5340
from node: {"rss":5468160,"vsize":41553920,"heapTotal":1676032,"heapUsed":1106688}
peak rss: 5344
from node: {"rss":5472256,"vsize":41553920,"heapTotal":1676032,"heapUsed":1110692}
peak rss: 5348
from node: {"rss":5476352,"vsize":41553920,"heapTotal":1676032,"heapUsed":1114696}
peak rss: 5352
from node: {"rss":5480448,"vsize":41553920,"heapTotal":1676032,"heapUsed":1118720}

Command terminated