318 reputation
38
bio website orcaware.com
location
age
visits member for 5 years, 7 months
seen May 28 at 19:54

Jun
1
awarded  Popular Question
Nov
26
awarded  Commentator
Nov
26
comment Whose DKIM signature to use, my own or Amazon SES'?
This may be a bad question, as the Amazon DKIM signature is signing the message on behalf of the domain of the original message. So my server signs it for example.com and then Amazon signs it also for example.com, but because I added CNAMES for Amazon's DKIM entries, they look like they are mine. So the question is, is the Amazon key pair that signs the message also signed and recognized by spam systems.
Nov
26
asked Whose DKIM signature to use, my own or Amazon SES'?
Feb
15
revised Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
Update question title.
Feb
13
comment Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
@DavidSchwartz Right, we agreed that the phrase "16959 MB of memory that the OS can use" isn't good. But you agree there's 16 GB of memory used by the buffer cache? Why does the kernel think its best to have 16 GB of buffer cache and swap processes out when swappiness is set to 0?
Feb
13
comment Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
@DavidSchwartz: What's gibberish? Maybe the phrasing isn't ideal, but what do you think about the point that there's 16959 MB of memory that the OS could leave for the KVM processes and not swap out to make more space for buffer cache.
Feb
12
comment Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
@ChrisS I have 7 VMs at 1.7 GB each = 11.9 GB on a host system with 32 GB of RAM, so I can afford to keep them all in RAM.
Feb
12
revised Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
edited title
Feb
12
comment Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
@TomO'Connor I've done what the linked to article suggests on changing swappiness and it had no effect, so this isn't a dup.
Feb
12
comment Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
This answer is incorrect in regards to the amount of "free" memory that the OS can reallocate to different tasks, see linuxatemyram.com . The OS will use all available memory and over time the top output will always show free memory close to 0 which is what you want. But if you look at the free -m output on the -/+ buffers/cache line above it shows that if you account for the buffer cache where pages can be dropped, there's 16959 MB of memory that the OS can use. I would rather the OS leave the VMs in memory and drop buffer cache pages than otherwise.
Feb
12
awarded  Critic
Feb
12
revised Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
Note that I've tried /sbin/swapoff -a; also add 'vmstat 5' output.
Feb
12
comment Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
I've done that a couple of times and it goes back to swapping the VMs immediately.
Feb
12
asked Why does host swap out VMs when there are 16GB of buffer cache and swappiness = 0?
Aug
28
revised Subversion - Can I set auto-props on the server side?
Update URL to svn_apply_autoprops.py
Aug
28
comment Subversion - Can I set auto-props on the server side?
Yes, that's the new location. The Subversion source code moved from svn.collab.net to svn.apache.org when we joined the Apache Software Foundation.
Nov
2
awarded  Notable Question
May
11
awarded  Yearling
Apr
3
awarded  Popular Question