But what does "persistent write cache" mean? What needs to be changed on the OS level? Google doesn't clearly link "persistent write cache" to a Linux feature.
On Wed, Feb 4, 2015 at 2:16 PM, <lst_ho...@kwsoft.de> wrote: > > Zitat von Andrew Bourgeois <and...@demmel.be>: > > > Hello >> >> What does "Speed up disk updates with a large (64MB) persistent write >> cache." mean (source: http://www.postfix.org/TUNING_README.html)? >> Does this talk about the "dirty ratio" or is it something else? Google >> didn't help me on this one. >> >> Thanks in advance! >> >> Best regards >> >> Andrew >> > > "This allows disk updates to be sorted for optimal access speed without > compromising file system integrity when the system crashes" > > That's why you need a *persistant* cache, to not loose mail and get decent > performance. > > Regards > > Andreas > > >
