[jira] [Commented] (LUCENE-6614) IOUtils.spins doesn't work for drives NVMe drives

["Dawid Weiss (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-6614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14602733#comment-14602733 ] 

Dawid Weiss commented on LUCENE-6614:
-------------------------------------

On a related note, this method also has a problem with any Directory that is wrapped with a delegate (and eventually has an FSDirectory pointing to disk). All such Directories indicate {{spin=true}}. 

I don't have any ready solution for this. There are a couple of ways to correct it -- move usesSpinningDrive() to be a method on the Directory, for example. Or more generic {{hasLargeSeekLatency}}...?

> 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
>            Priority: Minor
>             Fix For: 5.3, Trunk
>
>
> 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/0n1p1}} by Linux.
> 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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