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<font face="monospace">My guess is that you have some kind of JVMTI
agent that adds objects tags. See:<br>
<a class="moz-txt-link-freetext" href="https://docs.oracle.com/en/java/javase/11/docs/specs/jvmti.html#objectTags">https://docs.oracle.com/en/java/javase/11/docs/specs/jvmti.html#objectTags</a><br>
<br>
The JVM holds an internal hashmap from object to tags. In older
ZGCs releases we updated the object references in that hashmap
during a pause. This was later moved to a concurrent phase with
<a class="moz-txt-link-freetext" href="https://bugs.openjdk.org/browse/JDK-8212879">https://bugs.openjdk.org/browse/JDK-8212879</a>.<br>
<br>
StefanK<br>
</font><br>
<div class="moz-cite-prefix">On 2022-09-05 11:19, 苗昌宇 wrote:<br>
</div>
<blockquote type="cite" cite="mid:tencent_2892B01FB7E8407B1AEFD752F2924BC3DF08@qq.com">
<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:part1.qimCRP0Y.OInIiKci@oracle.com"></div>
</blockquote>
<br>
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