<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="" style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-variant-ligatures: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: -apple-system, system-ui, "Segoe UI Adjusted", "Segoe UI", "Liberation Sans", sans-serif; font-size: 15px; vertical-align: baseline; box-sizing: inherit; clear: both; color: rgb(35, 38, 41); orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;">When I use ZGC on JDK11.0.8 in an online service, I find the time of Subphase weak roots JVMTIWeakExport is always increasing as our service is running. I want to know want made that？</div><div class="" style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-variant-ligatures: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: -apple-system, system-ui, "Segoe UI Adjusted", "Segoe UI", "Liberation Sans", sans-serif; font-size: 15px; vertical-align: baseline; box-sizing: inherit; clear: both; color: rgb(35, 38, 41); orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;">Hope you will teach me. </div><div class="" style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-variant-ligatures: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: -apple-system, system-ui, "Segoe UI Adjusted", "Segoe UI", "Liberation Sans", sans-serif; font-size: 15px; vertical-align: baseline; box-sizing: inherit; clear: both; color: rgb(35, 38, 41); orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;"><br class=""></div><div class="" style="margin-top: 0px; margin-right: 0px; margin-bottom: var(--s-prose-spacing); margin-left: 0px; padding: 0px; border: 0px; font-variant-ligatures: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; line-height: inherit; font-family: -apple-system, system-ui, "Segoe UI Adjusted", "Segoe UI", "Liberation Sans", sans-serif; font-size: 15px; vertical-align: baseline; box-sizing: inherit; clear: both; color: rgb(35, 38, 41); orphans: 2; widows: 2; background-color: rgb(255, 255, 255); text-decoration-thickness: initial;"><img apple-inline="yes" id="EF02AE1B-06C2-49F1-81B1-95D739C4EAB9" class="" src="cid:5CA618F0-E5FC-4151-878E-723D060CA0E1"></div></body></html>