Solaris 11.4 / iostat latency reporting

The iostat command is used for IO performance reporting 
and has a lot of options.
Since Solaris 11.4 it includes the -L option to display
the latency distribution.

You can see how many request are sent to the disks and 
how the distribution is

Tuesday, March 31, 2026 at  1:23:55 PM CEST
                    extended device statistics
    r/s    w/s   Mr/s   Mw/s wait actv wsvc_t asvc_t  %w  %b device
   6.8   48.4    0.4    0.3  0.0  0.1    0.0    1.9   0   4 c2d13
latency          range         count      density distribution
                 <16us             0        0.00%        0.00%
               16-32us             1        0.36%        0.36%
               32-64us             2        0.72%        1.08%
              64-128us             0        0.00%        1.08%
             128-256us             7        2.51%        3.58%
             256-512us            59       21.15%       24.73%
            512-1024us            62       22.22%       46.95%
                 1-2ms            73       26.16%       73.12%
                 2-4ms            56       20.07%       93.19%
                 4-8ms            12        4.30%       97.49%
                8-16ms             5        1.79%       99.28%
               16-32ms             2        0.72%      100.00%
                 >32ms             0        0.00%      100.00%
                 total           279
   6.0  387.4    0.3   87.8  0.0  1.1    0.0    2.7   1  56 c2d14
latency          range         count      density distribution
                 <16us             0        0.00%        0.00%
               16-32us             1        0.05%        0.05%
               32-64us             1        0.05%        0.10%
              64-128us             0        0.00%        0.10%
             128-256us             5        0.25%        0.36%
             256-512us            66        3.35%        3.71%
            512-1024us           388       19.70%       23.40%
                 1-2ms           677       34.37%       57.77%
                 2-4ms           491       24.92%       82.69%
                 4-8ms           261       13.25%       95.94%
                8-16ms            64        3.25%       99.19%
               16-32ms            16        0.81%      100.00%
                 >32ms             0        0.00%      100.00%
                 total          1970

The following options are used

iostat -LxnM -Td c2d14 c2d13 5

Td to display date/time
L to display the latency
M to display MB/s
x to display extended output
n to display the disk names

The Next Oracle Solaris 11.4.90 CBE is available for Developers

CBE is the Common Build Environment

The first release 11.4.42 was made available by Oracle 03/2022.
Last year 05/2025 the version 11.4.81 was published.
And now 03/2026 11.4.90 is already available.

This release can be used by Developers to develop, test and demonstrate
their software for free. It includes current compilers and tools.

Download from 
https://www.oracle.com/solaris/solaris11/downloads/solaris-downloads.html

This is great news and confirms Oracle continues investing into Oracle Solaris.

 

New Features in Solaris 11.4 SRU90 (Feb 2026)

Another quarterly Solaris SRU including new features

devnm -s
beadm preserve policy
ls -sh output change
bootadm GRUB unrestricted property
ikev2cert PIN from SMF
nscfg check
new smf svc:/system/check/name-services:default

FOSS: BIND 9.20
EOF: GCC 12

New postgres packages are ready for Solaris 11.4 SPARC

You don't need to download source and compile yourself  for Solaris.

We provide compiled postgres as Solaris 11.4 SPARC IPS pkgs.
Current versions are 18.2, 17.8, 16.12, 15.16, 14.21

Free download and no registration
https://www.jomasoft.ch/downloads/#js-opensource

The State of Oracle Solaris - Jan 2026

Oracle Solaris is not much in the press anymore, but used
for critical systems around the world.

Solaris 11.4 was launched in 2018. Oracle provides updates/patches
every month. Every quarter (Feb,May,Aug,Nov) the update includes new features.
Oracle will provide this monthly updates till at least November 2037.

Documented in:
http://www.oracle.com/us/support/library/lifetime-support-hardware-301321.pdf

Oracle is working to make sure Solaris will run properly after 2037 for example
with changes in SRU72 delivered in August 2024. It would be no surprise
if the updates will continue after November 2037.
https://blogs.oracle.com/solaris/announcing-oracle-solaris-114-sru72

For developers a pretty current version (CBE) is available
for free to develop and test software.

Solaris CBE Download:
https://www.oracle.com/solaris/solaris11/downloads/solaris-downloads.html

Oracle even provides patches for the older releases Solaris 10
and Solaris 11.3. The last patches are expected by January 2027.
We highly recommend to migrate to Solaris 11.4 and we are
happy to support you with our very experiences engineers.

Oracle's Management and Monitoring tools (OpsCenter and VM Manager for SPARC) 
reached End-Of-Life. No patches are provided anymore. 

We at JomaSoft continue to enhance our VDCF management and monitoring tool 
for Oracle Solaris and Linux
https://www.jomasoft.ch/vdcf/

If you don't have a SPARC server yourself, maybe the JomaSoft
SPARC cloud could be helpful for you.
https://www.jomasoft.ch/services/ 

New Features in Solaris 11.4 SRU87 (Nov 2025)

Another quarterly Solaris SRU including new features

useradd -N / -U 
cableinfo
fmthard -c / -e
ldm add-/list-/remove-devalias


FOSS: GCC 15
EOF: PHP 8.1, Python 3.9

JomaSoft provides OpenJDK 17.0.16 package for Solaris 11.4 SPARC

Since three years JomaSoft produces Solaris 11.4 IPS packages
of opensource software. After postgres openjdk was added.
After 17.0.13 in December 2024, we provide now a package
with version 17.0.16.

Based on the work done by Peter Tribble. Thanks Peter!
https://github.com/ptribble/jdk-sunos-builder

Download Page
https://www.jomasoft.ch/downloads/#js-openjdk

Direct p5p Download Link
https://bit.ly/js-openjdk17-sparc

The package is provided without support or warranty.
Use at your own risk.