<div dir="ltr">swapcache can cache NFS data, but it won't accelerate writes. It's strictly a passive cache of clean/cleaned data.<div><br></div><div>The current dragonfly master does have some fixes pushed for Hammer2 which should improve flush performance some.<br><div><br></div><div>-Matt</div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 21, 2018 at 7:40 AM, Aaron LI <span dir="ltr"><<a href="mailto:aly@aaronly.me" target="_blank">aly@aaronly.me</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Tue, 21 Aug 2018 16:12:37 +0200<br>
"my123 (@never_released)" <<a href="mailto:securetalk@sbmobilepilot.onmicrosoft.com">securetalk@sbmobilepilot.<wbr>onmicrosoft.com</a>> wrote:<br>
<br>
> On my laptop, I use a DragonFlyBSD VM with NFS to use HAMMER2 features. <br>
> (ZFS for example doesn't support on-demand deduplication).<br>
> <br>
> Is there any way to combine a part of my SSD with the comparatively huge <br>
> HDD to make burst writes better (and have them committed to HDD later, <br>
> in times of low loads)? Linux supports this usecase better, but it <br>
> doesn't have a good filesystem for my usecase.<br>
> <br>
<br>
</span>Hi,<br>
<br>
Thanks for using DragonFly.<br>
<br>
I believe our swapcache(8) is what you need. Please read the nice<br>
swapcache(8) man page (<a href="http://mdoc.su/d/swapcache" rel="noreferrer" target="_blank">http://mdoc.su/d/swapcache</a> ), and you can find<br>
detailed description and examples.<br>
<br>
You're also welcomed to join the IRC (#dragonflybsd on EFNet) to ask more<br>
questions.<br>
<br>
<br>
Cheers,<br>
<span class="HOEnZb"><font color="#888888">-- <br>
Aaron<br>
</font></span></blockquote></div><br></div>