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Graphs: Add stat for render time (ticket #2684)

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zzz
2020-02-03 15:41:06 +00:00
parent f8283c04ca
commit e7ddee5509
1 changed files with 5 additions and 7 deletions
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12
apps/routerconsole/java/src/net/i2p/router/web/SummaryRenderer.java
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@ -57,11 +57,13 @@ class SummaryRenderer {
private static final int SIZE_MONO = 10;
private static final int SIZE_LEGEND = 10;
private static final int SIZE_TITLE = 13;
private static final long[] RATES = new long[] { 60*60*1000 };
public SummaryRenderer(I2PAppContext ctx, SummaryListener lsnr) {
_log = ctx.logManager().getLog(SummaryRenderer.class);
_listener = lsnr;
_context = ctx;
ctx.statManager().createRateStat("graph.renderTime", "", "Router", RATES);
}
/**
@ -132,15 +134,15 @@ class SummaryRenderer {
public void render(OutputStream out, int width, int height, boolean hideLegend, boolean hideGrid,
boolean hideTitle, boolean showEvents, int periodCount,
int endp, boolean showCredit, SummaryListener lsnr2, String titleOverride) throws IOException {
long begin = System.currentTimeMillis();
// prevent NaNs if we are skewed ahead of system time
long end = Math.min(_listener.now(), System.currentTimeMillis()) - 75*1000;
long end = Math.min(_listener.now(), begin - 75*1000);
long period = _listener.getRate().getPeriod();
if (endp > 0)
end -= period * endp;
if (periodCount <= 0 || periodCount > _listener.getRows())
periodCount = _listener.getRows();
long start = end - (period * periodCount);
//long begin = System.currentTimeMillis();
ImageOutputStream ios = null;
try {
RrdGraphDef def = new RrdGraphDef();
@ -311,12 +313,8 @@ class SummaryRenderer {
graph.render(gfx);
ios = new MemoryCacheImageOutputStream(out);
ImageIO.write(img, "png", ios);
//System.out.println("Graph created");
//File t = File.createTempFile("jrobinData", ".xml");
//_listener.getData().dumpXml(new FileOutputStream(t));
//System.out.println("plotted: " + (data != null ? data.length : 0) + " bytes in " + timeToPlot
// ); // + ", data written to " + t.getAbsolutePath());
_context.statManager().addRateData("graph.renderTime", System.currentTimeMillis() - begin);
} catch (RrdException re) {
_log.error("Error rendering", re);
throw new IOException("Error plotting: " + re.getLocalizedMessage());