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<div class="moz-cite-prefix">On 12/01/2024 19:19, Quân Anh Mai
wrote:<br>
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<blockquote type="cite" cite="mid:CAPvyiy+bWY-4q+jcOdLtVH5jR+ekM+F262roM9=FV+MxH4Sz4g@mail.gmail.com">
<div dir="ltr">It is really late here so I will try that tomorrow.
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<div>Note that usage of the everything segment requires
--enable-native-access, which in general gives an unsafe
notice anyway.</div>
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<p>Sure, I'm mostly curious as to how much of the gap is caused by
bound check for on-heap vs. off-heap access. In my experience the
latter almost always dominate the former.</p>
<p>Maurizio<br>
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<blockquote type="cite" cite="mid:CAPvyiy+bWY-4q+jcOdLtVH5jR+ekM+F262roM9=FV+MxH4Sz4g@mail.gmail.com">
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<div>Regards,</div>
<div>Quan Anh</div>
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<div dir="ltr" class="gmail_attr">On Sat, 13 Jan 2024 at 01:29,
Maurizio Cimadamore <<a href="mailto:maurizio.cimadamore@oracle.com" moz-do-not-send="true" class="moz-txt-link-freetext">maurizio.cimadamore@oracle.com</a>>
wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
On 12/01/2024 17:26, Quân Anh Mai wrote:<br>
> FYI, in my submission to 1brc, using Unsafe decreases the
execution <br>
> time from 3.25s to 2.57s on the test machine.<br>
<br>
Just curious - what is the difference compared with the
everything <br>
segment trick?<br>
<br>
(While I know it can't do on-heap access, perhaps you can
tweak the code <br>
to be all off-heap?)<br>
<br>
Maurizio<br>
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