<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>Hello All,</div><div><br></div><div> Could somebody please answer my question below?</div><div><br></div><div>Best Regards</div><div>Ionut</div><br><br><div>-------- Original message --------</div><div>From: Ionut <ionutb83@yahoo.com> </div><div>Date:04/07/2015 13:51 (GMT+02:00) </div><div>To: hotspot-gc-dev@openjdk.java.net </div><div>Subject: Dirty Cards Write Barrier </div><div><br></div><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:12px"><div id="yui_3_16_0_1_1436006481381_9609">Hello Everybody,</div><div id="yui_3_16_0_1_1436006481381_9609"><br></div><div id="yui_3_16_0_1_1436006481381_9609" dir="ltr" class=""> I have just joined this group and since last year I started to study HotSpot more in detail. I have a question for you, so your input will be greatly appreciated.</div><div id="yui_3_16_0_1_1436006481381_9609" dir="ltr" class=""><br></div><div id="yui_3_16_0_1_1436006481381_9609" dir="ltr" class=""> Based on my understanding Dirty Cards Write Barrier is a way of keeping track of references from Old to Young Generation. This technique is used during minor GC to search for objects referred from Old generation. </div><div id="yui_3_16_0_1_1436006481381_9609" dir="ltr" class=""> Is this technique used by all minor GC: Serial, Parallel, Parallel Old, CMS, G1? Are there any other Write Barrier techniques?</div><div id="yui_3_16_0_1_1436006481381_9609" dir="ltr"><br></div><div id="yui_3_16_0_1_1436006481381_9609" dir="ltr">Regards,</div><div id="yui_3_16_0_1_1436006481381_9609" dir="ltr">Ionut Balosin</div></div></body>