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https://issues.apache.org/jira/browse/LUCENE-6614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14602816#comment-14602816
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Dawid Weiss commented on LUCENE-6614:
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> tmpfs is not a spinning disk.
So? Does it have large seek latency? I think the criterion should be: could it
run multiple disk operations (like merges) at the same time without additional
performance penalty. If it passes then it's just as good as an SSD, regardless
of what's behind it.
> IOUtils.spins doesn't work for drives NVMe drives
> -------------------------------------------------
>
> Key: LUCENE-6614
> URL: https://issues.apache.org/jira/browse/LUCENE-6614
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Michael McCandless
> Assignee: Uwe Schindler
> Priority: Minor
> Fix For: 5.3, Trunk
>
> Attachments: LUCENE-6614.patch
>
>
> NVMe is the faster (than AHCI) protocol for newer SSDs that plug into the
> PCIE bus.
> I just built a new beast box with one of these drives, and the partition is
> named {{/dev/nvme0n1p1}} while the device is {{/dev/nvme0n1}} by Linux - this
> also appears in /sys/block with rotational=0.
> I think [~steve_rowe] also has an NVME drive ...
> [~thetaphi] (who got the box working for me: thank you!!!) has ideas on how
> to fix it!
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