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Date: Thu, 29 Apr 2021 10:12:38 +0200 (CEST)
From: Dietmar Maurer <dietmar@proxmox.com>
To: Stefan Reiter <s.reiter@proxmox.com>,
 Proxmox Backup Server development discussion <pbs-devel@lists.proxmox.com>
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Subject: Re: [pbs-devel] [PATCH proxmox-backup 2/3] RemoteChunkReader: add
 LRU cached variant
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> Again, performance testing is hard with this (I'll take a closer look at 
> why as well), but in terms of hit rate the "hinted" cache is at about 
> 1-2% - we could probably reduce it's size.
> 
> Removing it entirely would probably not be good, as I think we use it to 
> cache the zero-chunk as well IIRC?

Yes, you are right.