2012/8/8 Kirk Pepperdine <span dir="ltr"><<a href="mailto:kirk@kodewerk.com" target="_blank">kirk@kodewerk.com</a>></span><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I'm looking at this record.<br>
<br>
919.673: [GC-- [PSYoungGen: 643582K->643582K(648704K)] 1905561K->2004508K(2014080K), 0.0319900 secs]<br>
<br></blockquote><div>Are you sure this is a G1 gc log?</div><div><br></div><div>Those "GC--" stand for promotion failure case (<span style="background-color:rgb(255,255,255);color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px">VM have recognized that is was very likely that tenured would be flooded by scavenge</span>). Please, refer to </div>
<div><a href="http://hg.openjdk.java.net/jdk6/jdk6/hotspot/file/a541ca8fa0e3/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp">http://hg.openjdk.java.net/jdk6/jdk6/hotspot/file/a541ca8fa0e3/src/share/vm/gc_implementation/parallelScavenge/psScavenge.cpp</a> </div>
<div><div class="parity0" style="font-size:12px;font-family:monospace"><pre style="margin-top:0px;margin-bottom:0px"><span class="linenr" style="color:rgb(153,153,153)">      445</span>     promotion_failure_occurred = promotion_failed();
</pre></div><div class="parity1" style="background-color:rgb(246,246,240);font-size:12px;font-family:monospace"><pre style="margin-top:0px;margin-bottom:0px"><span class="linenr" style="color:rgb(153,153,153)">      446</span>     if (promotion_failure_occurred) {
</pre></div><div class="parity0" style="font-size:12px;font-family:monospace"><pre style="margin-top:0px;margin-bottom:0px"><span class="linenr" style="color:rgb(153,153,153)">      447</span>       clean_up_failed_promotion();
</pre></div><div class="parity1" style="background-color:rgb(246,246,240);font-size:12px;font-family:monospace"><pre style="margin-top:0px;margin-bottom:0px"><span class="linenr" style="color:rgb(153,153,153)">      448</span>       if (PrintGC) {
</pre></div><div class="parity0" style="font-size:12px;font-family:monospace"><pre style="margin-top:0px;margin-bottom:0px"><span class="linenr" style="color:rgb(153,153,153)">      449</span>         gclog_or_tty->print("--");
</pre></div><div class="parity1" style="background-color:rgb(246,246,240);font-size:12px;font-family:monospace"><pre style="margin-top:0px;margin-bottom:0px"><span class="linenr" style="color:rgb(153,153,153)">      450</span>       }
</pre></div><div class="parity0" style="font-size:12px;font-family:monospace"><pre style="margin-top:0px;margin-bottom:0px"><span class="linenr" style="color:rgb(153,153,153)">      451</span>     }</pre></div></div></div>
<div><br></div>-- <br>Regards,<div>Vladimir Sitnikov</div><br>