Re: cache write back & barriers

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



>>I'm wondering: does this also make kvm to ignore write barriers invoked 
>>by the virtual machine? 

no, cache=writeback is ok, write barriers are working correctly

only with cache=unsafe,it doesn't care about write flush.


----- Mail original ----- 

De: "folkert" <folkert@xxxxxxxxxxxxxx> 
À: kvm@xxxxxxxxxxxxxxx 
Envoyé: Mercredi 12 Juin 2013 10:03:10 
Objet: cache write back & barriers 

Hi, 

In virt-manager I saw that there's the option for cache writeback for 
storage devices. 
I'm wondering: does this also make kvm to ignore write barriers invoked 
by the virtual machine? 


regards, 

Folkert van Heusden 

-- 
Always wondered what the latency of your webserver is? Or how much more 
latency you get when you go through a proxy server/tor? The numbers 
tell the tale and with HTTPing you know them! 
http://www.vanheusden.com/httping/ 
----------------------------------------------------------------------- 
Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com 
-- 
To unsubscribe from this list: send the line "unsubscribe kvm" in 
the body of a message to majordomo@xxxxxxxxxxxxxxx 
More majordomo info at http://vger.kernel.org/majordomo-info.html 
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux