and to finish that topic:in days of zram (it's in the mainline kernel for a long time - https://www.kernel.org/doc/Documentation/blockdev/zram.txt) when you think you need some swap for whatever reason you use that just because modern hardware has left so many cpu cycles left that it don't need measurable ressources and it#s way faster
Am 05.01.2016 um 19:19 schrieb Reindl Harald:
Am 05.01.2016 um 19:05 schrieb Darcy Kevin (FCA):http://unix.stackexchange.com/questions/190398/do-i-need-swap-space-if-i-have-more-than-enough-amount-of-ramand the answer is clearly NO if you have *enough* RAM you just have to define the "enough" which means your workload and your useful buffercache fits in when a have a machine (in my case only VMs) running over a full month with a 1 GB swap file and it's not used with a single MB i do NOT need stackexchange to answer that question a dedicated authoritative-only namserver and to utilize the ressources a containered asterisk with hylafax and even a tiny webserver with a mysqld for the addressbook are doing that with 1.5 GB RAM: [root@asterisk:~]$ free total used free shared buff/cache available Mem: 1,5G 150M 886M 18M 460M 1,3G Swap: 0B 0B 0B what do you want to swap out there? the machine has all blocks of the disks it ever accessed, the software and the data in it's memory and would not come to the idea swap anything out anyways-----Original Message----- From: bind-users-boun...@lists.isc.org [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Reindl Harald Sent: Tuesday, January 05, 2016 12:19 PM To: bind-users@lists.isc.org Subject: Re: Writeable file already in use Am 05.01.2016 um 18:03 schrieb Barry Margolin:In article <mailman.13.1452009325.73610.bind-us...@lists.isc.org>, Alan Clegg <a...@clegg.com> wrote:On 1/5/16 6:26 AM, Jan-Piet Mens wrote:This might make you sad if you have lots of zones or large zones... or even just want to look at what was transferred (whitout having to recurse to a `dig axfr'). I see no reason to omit 'file' (except on a diskless slave ;-)I ran into one exception to this rule - it seemed that the customer had security requirements that did not allow "transient data" to be written to disk. They had to make sure that if the physical device was stolen, all of their zone data didn't follow it out the door.The in-memory copy is likely to end up in the swap partitiona proper dimensioned server has no swap partition at all, at least no one od the servers i am responsible since 2008 had one and *for sure* the memory requirement of a authoritative nameserver is pretty clear to don't need it
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users