<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>DeathArrow</author><text>Since POWER9 and OpenSPARC are open architectures with open ISAs, I don&amp;#x27;t see why companies like Facebook, Amazon, Alibaba aren&amp;#x27;t using them and trying instead to build CPUs based on ARM. Is there a much better performance&amp;#x2F;power ration which can be achieved by ARM and not by POWER or SPARC?</text><parent_chain></parent_chain></comment><story><title>First stage POWER9 Firefox JIT passes tests</title><url>https://www.talospace.com/2021/11/51552-javascript-tests-cant-be-wrong.html</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>nerdponx</author><text>What&amp;#x27;s the context for this? Is there a new JIT compiler for Javascript in Firefox? Or is it a 3rd-party &amp;quot;add-on&amp;quot; that improves performance on some specific machine that this company makes?</text><parent_chain></parent_chain></comment><story><title>First stage POWER9 Firefox JIT passes tests</title><url>https://www.talospace.com/2021/11/51552-javascript-tests-cant-be-wrong.html</url></story>