Examples with Rate net.i2p.stat.Rate used on opensource projects

Example 16 with Rate

use of net.i2p.stat.Rate in project i2p.i2p by i2p.

the class CapacityCalculator method estimateCapacity.

/**
 * Compute a tunnel accept capacity-per-hour for the given period
 * This is perhaps the most critical part of the peer ranking and selection
 * system, so adjust with great care and testing to ensure good network
 * performance and prevent congestion collapse.
 *
 * The baseline or "growth factor" is 5.
 * Rejects will not reduce the baseline. Failures will.
 *
 * @param acceptStat Accept counter (1 = 1 accept)
 * @param rejectStat Reject counter (1 = 1 reject)
 * @param failedStat Failed counter (100 = 1 fail)
 *
 * Let A = accects, R = rejects, F = fails
 * @return estimated and adjusted accepts per hour, for the given period
 *         which is, more or less, max(0, 5 + (A * (A / (A + 2R))) - (4 * F))
 */
private static double estimateCapacity(RateStat acceptStat, RateStat rejectStat, RateStat failedStat, int period) {
    Rate curAccepted = acceptStat.getRate(period);
    Rate curRejected = rejectStat.getRate(period);
    Rate curFailed = failedStat.getRate(period);
    RateAverages ra = RateAverages.getTemp();
    double eventCount = 0;
    if (curAccepted != null) {
        eventCount = curAccepted.computeAverages(ra, false).getTotalEventCount();
        // and we don't want everybody to be at zero during times of congestion.
        if (eventCount > 0 && curRejected != null) {
            long rejected = curRejected.computeAverages(ra, false).getTotalEventCount();
            if (rejected > 0)
                eventCount *= eventCount / (eventCount + (2 * rejected));
        }
    }
    double stretch = ((double) ESTIMATE_PERIOD) / period;
    double val = eventCount * stretch;
    // We also don't want to drive everybody's capacity to zero, that isn't helpful.
    if (curFailed != null) {
        double failed = curFailed.computeAverages(ra, false).getTotalValues();
        if (failed > 0) {
            // if ( (period <= 10*60*1000) && (curFailed.getCurrentEventCount() > 0) )
            // return 0.0d; // their tunnels have failed in the last 0-10 minutes
            // else
            // .04 = 4.0 / 100.0 adjustment to failed
            val -= 0.04 * failed * stretch;
        }
    }
    val += GROWTH_FACTOR;
    if (val >= 0) {
        return val;
    } else {
        return 0.0d;
    }
}

Example 17 with Rate

use of net.i2p.stat.Rate in project i2p.i2p by i2p.

the class CoalesceStatsEvent method timeReached.

public void timeReached() {
    int active = getContext().commSystem().countActivePeers();
    getContext().statManager().addRateData("router.activePeers", active, 60 * 1000);
    int activeSend = getContext().commSystem().countActiveSendPeers();
    getContext().statManager().addRateData("router.activeSendPeers", activeSend, 60 * 1000);
    int fast = getContext().profileOrganizer().countFastPeers();
    getContext().statManager().addRateData("router.fastPeers", fast, 60 * 1000);
    int highCap = getContext().profileOrganizer().countHighCapacityPeers();
    getContext().statManager().addRateData("router.highCapacityPeers", highCap, 60 * 1000);
    int integrated = getContext().peerManager().getPeersByCapability('f').size();
    getContext().statManager().addRateData("router.integratedPeers", integrated, 60 * 1000);
    getContext().statManager().addRateData("bw.sendRate", (long) getContext().bandwidthLimiter().getSendBps());
    getContext().statManager().addRateData("bw.recvRate", (long) getContext().bandwidthLimiter().getReceiveBps());
    getContext().statManager().addRateData("router.tunnelBacklog", getContext().tunnelManager().getInboundBuildQueueSize(), 60 * 1000);
    long used = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
    getContext().statManager().addRateData("router.memoryUsed", used);
    if (_maxMemory - used < LOW_MEMORY_THRESHOLD)
        Router.clearCaches();
    getContext().tunnelDispatcher().updateParticipatingStats(Router.COALESCE_TIME);
    getContext().statManager().coalesceStats();
    RateStat receiveRate = getContext().statManager().getRate("transport.receiveMessageSize");
    if (receiveRate != null) {
        Rate rate = receiveRate.getRate(60 * 1000);
        if (rate != null) {
            double bytes = rate.getLastTotalValue();
            double bps = (bytes * 1000.0d) / rate.getPeriod();
            getContext().statManager().addRateData("bw.receiveBps", (long) bps, 60 * 1000);
        }
    }
    RateStat sendRate = getContext().statManager().getRate("transport.sendMessageSize");
    if (sendRate != null) {
        Rate rate = sendRate.getRate(60 * 1000);
        if (rate != null) {
            double bytes = rate.getLastTotalValue();
            double bps = (bytes * 1000.0d) / rate.getPeriod();
            getContext().statManager().addRateData("bw.sendBps", (long) bps, 60 * 1000);
        }
    }
}

Example 18 with Rate

use of net.i2p.stat.Rate in project i2p.i2p by i2p.

the class RouterWatchdog method dumpStatus.

private void dumpStatus() {
    if (_log.shouldLog(Log.ERROR)) {
        /*
            Job cur = _context.jobQueue().getLastJob();
            if (cur != null) 
                _log.error("Most recent job: " + cur);
            _log.error("Last job began: " 
                       + DataHelper.formatDuration(_context.clock().now()-_context.jobQueue().getLastJobBegin())
                       + " ago");
            _log.error("Last job ended: " 
                       + DataHelper.formatDuration(_context.clock().now()-_context.jobQueue().getLastJobEnd())
                       + " ago");
            */
        _log.error("Ready and waiting jobs: " + _context.jobQueue().getReadyCount());
        _log.error("Job lag: " + _context.jobQueue().getMaxLag());
        _log.error("Participating tunnel count: " + _context.tunnelManager().getParticipatingCount());
        RateStat rs = _context.statManager().getRate("transport.sendProcessingTime");
        Rate r = null;
        if (rs != null)
            r = rs.getRate(60 * 1000);
        double processTime = (r != null ? r.getAverageValue() : 0);
        _log.error("1 minute send processing time: " + DataHelper.formatDuration((long) processTime));
        rs = _context.statManager().getRate("bw.sendBps");
        r = null;
        if (rs != null)
            r = rs.getRate(60 * 1000);
        double bps = (r != null ? r.getAverageValue() : 0);
        _log.error("Outbound send rate: " + DataHelper.formatSize((long) bps) + "Bps");
        long max = Runtime.getRuntime().maxMemory();
        long used = Runtime.getRuntime().totalMemory() - Runtime.getRuntime().freeMemory();
        _log.error("Memory: " + DataHelper.formatSize(used) + "B / " + DataHelper.formatSize(max) + 'B');
        if (_consecutiveErrors == 1) {
            _log.log(Log.CRIT, "Router appears hung, or there is severe network congestion.  Watchdog starts barking!");
            _context.router().eventLog().addEvent(EventLog.WATCHDOG);
            // This works on linux...
            // It won't on windows, and we can't call i2prouter.bat either, it does something
            // completely different...
            long now = _context.clock().now();
            if (now - _lastDump > MIN_DUMP_INTERVAL) {
                _lastDump = now;
                ThreadDump.dump(_context, 10);
            }
        }
    }
}

Example 19 with Rate

use of net.i2p.stat.Rate in project i2p.i2p by i2p.

the class ProfileOrganizerRenderer method davg.

private String davg(DBHistory dbh, long rate, RateAverages ra) {
    RateStat rs = dbh.getFailedLookupRate();
    if (rs == null)
        return "0%";
    Rate r = rs.getRate(rate);
    if (r == null)
        return "0%";
    r.computeAverages(ra, false);
    if (ra.getTotalEventCount() <= 0)
        return "0%";
    double avg = 0.5 + 100 * ra.getAverage();
    return ((int) avg) + "%";
}

Example 20 with Rate

use of net.i2p.stat.Rate in project i2p.i2p by i2p.

the class StatsGenerator method renderRate.

private void renderRate(String name, StringBuilder buf, boolean showAll) {
    RateStat rate = _context.statManager().getRate(name);
    String d = rate.getDescription();
    if (!"".equals(d)) {
        buf.append("<span class=\"statsLongName\"><i>");
        buf.append(d);
        buf.append("</i></span><br>");
    }
    if (rate.getLifetimeEventCount() <= 0) {
        buf.append("<ul><li class=\"noevents\">").append(_t("No lifetime events")).append("</li></ul>\n");
        return;
    }
    long now = _context.clock().now();
    long[] periods = rate.getPeriods();
    Arrays.sort(periods);
    buf.append("<ul>");
    for (int i = 0; i < periods.length; i++) {
        Rate curRate = rate.getRate(periods[i]);
        if (curRate.getLastCoalesceDate() <= curRate.getCreationDate())
            break;
        buf.append("<li>");
        renderPeriod(buf, periods[i], _t("rate"));
        if (curRate.getLastEventCount() > 0) {
            buf.append(_t("Average")).append(": ");
            buf.append(num(curRate.getAverageValue()));
            buf.append("; ");
            buf.append(_t("Highest average"));
            buf.append(": ");
            buf.append(num(curRate.getExtremeAverageValue()));
            buf.append(". ");
            // Don't bother to translate
            if (showAll) {
                buf.append("Highest total in a period: ");
                buf.append(num(curRate.getExtremeTotalValue()));
                buf.append(". ");
            }
            // Don't bother to translate
            if (showAll && curRate.getLifetimeTotalEventTime() > 0) {
                buf.append("Saturation: ");
                buf.append(pct(curRate.getLastEventSaturation()));
                buf.append("; Saturated limit: ");
                buf.append(num(curRate.getLastSaturationLimit()));
                buf.append("; Peak saturation: ");
                buf.append(pct(curRate.getExtremeEventSaturation()));
                buf.append("; Peak saturated limit: ");
                buf.append(num(curRate.getExtremeSaturationLimit()));
                buf.append(". ");
            }
            buf.append("<span class=\"nowrap\">");
            buf.append(ngettext("There was 1 event in this period.", "There were {0} events in this period.", (int) curRate.getLastEventCount()));
            buf.append("</span> <span class=\"nowrap\">");
            buf.append(_t("The period ended {0} ago.", DataHelper.formatDuration2(now - curRate.getLastCoalesceDate())));
            buf.append("</span>");
        } else {
            buf.append(" <i>").append(_t("No events")).append(" </i>");
        }
        long numPeriods = curRate.getLifetimePeriods();
        if (numPeriods > 0) {
            double avgFrequency = curRate.getLifetimeEventCount() / (double) numPeriods;
            buf.append("&nbsp;<span class=\"nowrap\">(").append(_t("Average event count")).append(": ");
            buf.append(num(avgFrequency));
            buf.append("; ").append(_t("Events in peak period")).append(": ");
            // This isn't really the highest event count, but the event count during the period with the highest total value.
            buf.append(curRate.getExtremeEventCount());
            buf.append(")</span>");
        }
        if (curRate.getSummaryListener() != null) {
            buf.append("<br><span class=\"statsViewGraphs\"><a href=\"graph?stat=").append(name).append('.').append(periods[i]);
            buf.append("&amp;w=600&amp;h=200\">").append(_t("Graph Data")).append("</a> - ");
            buf.append(" <a href=\"graph?stat=").append(name).append('.').append(periods[i]);
            buf.append("&amp;w=600&amp;h=200&amp;showEvents=true\">").append(_t("Graph Event Count")).append("</a></span>");
        // This can really blow up your browser if you click on it
        // buf.append(" - <a href=\"viewstat.jsp?stat=").append(name);
        // buf.append("&amp;period=").append(periods[i]);
        // buf.append("&amp;format=xml\">").append(_t("Export Data as XML")).append("</a>");
        }
        buf.append("</li>\n");
    }
    // Display the strict average
    buf.append("<li><b>").append(_t("Lifetime average value")).append(":</b> ");
    buf.append(num(rate.getLifetimeAverageValue()));
    buf.append(" (");
    buf.append(ngettext("1 event", "{0} events", (int) rate.getLifetimeEventCount()));
    buf.append(")<br></li>" + "</ul>" + "<br>\n");
}