06-10-2009
Thanks jlliagre. That moves me forward.
> Only pages are cached, i.e. portions of files that are actually used, not whole files.
Ok. That's fine too. Would you know which parts of kstat output shows the total # of pages cached or at least which vars contain this so I can calculate this?
> Assuming you are only using UFS and no FZS, the file cache is displayed in this line on your report:
Yes I know. I was interested in getting this number using kstat values as mdb is slow and because of this impractical.
> Also,
> Is the portion of physical memory used allocated to the cache?
> Is it part of the physical memory allocated to swap?
-> The file cache is obviously RAM based. There would be no interest to cache disks
-> blocks into different other disk blocks.
Yes of course. Let me rephrase. On Solaris, the memory reported by vmstat per my understanding already does not include cache. Solaris considers the cache portion as memory it can grab as needed so it sees it as free. This makes sense to me and so any usage reported through Solaris commands is the portion used that is not cache. Please correct me if I'm wrong.
In light of above, of the physical ram Solaris sees as free, what portion of that is Cache?
Again, thank you for the help so far.
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LEARN ABOUT OPENDARWIN
install-solaris
install-solaris(1M) install-solaris(1M)
NAME
install-solaris - install the Solaris operating system
SYNOPSIS
install-solaris
install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation,
install-solaris invokes either a text-based installer or a graphical installer.
The following minimum requirements for physical memory dictate which features are available during installation:
For SPARC machines:
128 MB
Minimum physical memory for all installation types
128 MB
Minimum physical memory required for windowing system
384 MB
Minimum physical memory required for graphical-based installation
For x86 machines:
256 MB
Minimum physical memory for all installation types
256 MB
Minimum physical memory required for windowing system
512 MB
Minimum physical memory required for graphical-based installation
In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea-
tures available.
install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more
details.
install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
installation media. Refer to the for disk space requirements.
Refer to the for more information on the various menus and selections.
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcdrom (Solaris instal- |
| |lation media) |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
pkginfo(1), install(1M), pkgadd(1M), attributes(5)
It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.
23 Sep 2005 install-solaris(1M)