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<p>Thanks a lot!</p>
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<p>I have tried with loongson JDK13 and find there is 200-400x <span>performance degradation</span> about kafka\hdfs\spark compared with JDK13 on x86 machine.</p>
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<p>Have you tested their benchmark? Is there any tuning way?</p>
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<p>Best Wishes<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Ao Qi <aoqi@loongson.cn><br>
<b>Sent:</b> Tuesday, January 14, 2020 10:40:11 PM<br>
<b>To:</b> Xiang Dai<br>
<b>Cc:</b> mips-port@openjdk.java.net<br>
<b>Subject:</b> Re: JDK13 download for mips</font>
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<div class="PlainText">Hi Dai Xiang,<br>
<br>
On Tue, Jan 14, 2020 at 5:40 PM Dai Xiang <xiang.dai@iluvatar.ai> wrote:<br>
><br>
> Hi!<br>
><br>
> Is it available to download JDK13 for mips?<br>
<br>
If the question is whether there is upstream source code of jdk13 for<br>
mips, the answer is yes and they are<br>
<a href="http://hg.openjdk.java.net/jdk/jdk13">http://hg.openjdk.java.net/jdk/jdk13</a> and<br>
<a href="http://hg.openjdk.java.net/jdk-updates/jdk13u">http://hg.openjdk.java.net/jdk-updates/jdk13u</a>. The zero of jdk13 works<br>
on mips, but it is an interpreter version. If you are looking for an<br>
upstream build, I think it is not available. Maybe you could find a<br>
downstream build in some Linux distributions, like Debian.<br>
<br>
Loongson maintains a mips64 port of jdk13, which is a server version.<br>
We have released an ea build of jdk13 mips port [1]. It is built with<br>
-march=loongson3a, so there would be problems if you run it on a<br>
non-Loongson CPU.<br>
<br>
><br>
> If not, where can i download lower version, like JDK11 or JDK8?<br>
<br>
The upstream mips port of jdk11 and jdk8 is in a similar situation to<br>
jdk13. Only zero/interpreter is there.<br>
<br>
We also maintain a mips64 port of jdk11u and jdk8u. We have not<br>
released jdk11 yet. The repo of jdk8u could be found here [2]. The<br>
latest jdk8u build could be found here [3]. It is also built with<br>
-march=loongson3a.<br>
<br>
><br>
> It would be better if code source or download link shows at<br>
> <a href="https://openjdk.java.net/projects/mips-port">https://openjdk.java.net/projects/mips-port</a>.<br>
<br>
I think Dalibor Topic is the right one to edit the page. However, in<br>
my opinion, the source code position is the same as the other port,<br>
and there is no download link, so nothing could be shown at<br>
<a href="https://openjdk.java.net/projects/mips-port">https://openjdk.java.net/projects/mips-port</a> :)<br>
<br>
Cheers,<br>
Ao Qi<br>
<br>
[1] <a href="http://ftp.loongnix.org/toolchain/java/openjdk13/loongson13-ea-jdk13+33-20190916-linux-loongson3a.tar.gz">
http://ftp.loongnix.org/toolchain/java/openjdk13/loongson13-ea-jdk13+33-20190916-linux-loongson3a.tar.gz</a><br>
[2] <a href="http://hg.loongnix.org">http://hg.loongnix.org</a><br>
[3] <a href="http://ftp.loongnix.org/toolchain/java/openjdk8/loongson_openjdk8.1.3-jdk8u212b03-linux-loongson3a.tar.gz">
http://ftp.loongnix.org/toolchain/java/openjdk8/loongson_openjdk8.1.3-jdk8u212b03-linux-loongson3a.tar.gz</a><br>
<br>
><br>
> --<br>
> Best Regards<br>
> Dai Xiang<br>
<br>
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