On 2/16/24 12:00, Matthew Grooms wrote:
On 2/16/24 11:42, Chuck Tuffli wrote:
On Fri, Feb 16, 2024, at 9:19 AM, Matthew Grooms wrote:
Hi All,
I'm in the middle of a project that involves building out a handful
of servers to host virtual Linux instances. Part of that includes
testing bhyve to see how it performs. The intent is to compare host
storage options such as raw vs zvol block devices and ufs vs zfs
disk images using hardware raid vs zfs managed disks. It would also
involve
…
Here is a list of a few other things I'd like to try:
1) Wiring guest memory ( unlikely as it's 32G of 256G )
2) Downgrading the host to 13.2-RELEASE
FWIW we recently did a similar exercise and saw significant
performance differences on ZFS backed disk images when comparing 14.0
and 13.2. We didn’t have time to root cause the difference, so it
could simply be some tuning difference needed for 14.
Hi Chuck,
That's very helpful feedback. I'll start by downgrading the host to
13.2 and report back here.
Unfortunately same story with 13.2. I'm going to try and downgrade to
12.4 and see if it gets any better.
================================================================================
Begin @ Sat Feb 17 11:00:01 CST 2024
Version 2.00 ------Sequential Output------ --Sequential Input-
--Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Name:Size etc /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
localhost.lo 63640M 690k 99 1.5g 97 727m 78 950k 99 1.3g 68
+++++ +++
Latency 11759us 29114us 8098us 8649us 23413us 4540us
Version 2.00 ------Sequential Create------ --------Random
Create--------
localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
+++++ +++
Latency 7791us 131us 1671us 464us 15us 1811us
End @ Sat Feb 17 11:03:13 CST 2024
================================================================================
Begin @ Sat Feb 17 11:10:01 CST 2024
Version 2.00 ------Sequential Output------ --Sequential Input-
--Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Name:Size etc /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
localhost.lo 63640M 667k 99 449m 99 313m 94 940k 99 398m 99
16204 563
Latency 12147us 1079us 24470us 8795us 17853us 4384us
Version 2.00 ------Sequential Create------ --------Random
Create--------
localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 0 93 +++++ +++ +++++ +++ 0 96 +++++ +++
+++++ +++
Latency 118us 159us 269us 164us 54us 844us
End @ Sat Feb 17 11:18:43 CST 2024
