Oracle - Oracle Solaris 11 Performance Management. No hands on lab environment for the TOD course format. This Oracle Solaris 11 Performance Management course introduces you to performance tuning principles. Learn to monitor utilities and use tuning tools for the Oracle Solaris 11 Operating System. Tracing tools. Tracing system calls and function calls provides the best insight into process behavior. Solaris provides tools including truss, apptrace, and dtrace to trace processes. Table 3.1 summarizes and cross-references the tools covered in this section. Many of these tools read statistics from the /proc. 'The Solaris™Internals volumes are simply the best and most comprehensive treatment of the Solaris (and OpenSolaris) Operating Environment. Any person using Solaris--in any capacity--would be remiss not to include these two new volumes in their personal library. With advanced observability tools in Solaris (like. Editor's note: Adrian Cockcroft's Performance Q&A column in SunWorld generates more reader e-mail than any other item in our monthly magazine. Is there a Solaris 2.4 kernel tuning parameter that stop unfriendly programs from taking over a system? Any performance tuning hints for Solaris 2.5?

Solaris System Logs May the source be with you, but remember the KISS principle;-) Solaris System Logs /var/cron/log A system log is a recording of certain events. The kind of events found in a system log is determined by the nature of the particular log and any configurations used to control those events that are logged. System logs are usually text files containing a timestamp and other information specific to the message or subsystem.

One issue with log files is the difference between how Windows and UNIX each maintain open files. In UNIX, although it is not possible to remove a file that is currently open, it is possible to rename that file. Autocad 2010 Free Download For Windows Xp With Crack Torrent. In Windows, it is necessary to manipulate the access control list (ACL) of the file before renaming the file; a simple rename fails. Both Windows and UNIX do share the behavior, if the file is open, and it is renamed, the process continues to write to that renamed file. In order for a process that keeps a file open to write to the original name, it must be restarted.

Upon restart, the process creates a new file with the original name. This is in contrast with processes, which open a file, write to it, and then close it. If the file was open at the time of the rename, the process continues to finish the write operation before closing the file descriptor. When the process is ready to write again, it writes to the original name, thus creating a new file. Logs are rotated using -- a special utility introduced in Solaris 9.

Top Visited Your browser does not support iframes. • 200000: • 200000: • 200000:;-) I vote for /var/log/cron.19990220, /var/log/ftp.19990220, /var/log/authlog.199902, etc. Cal 22 Sailboat Manual Bilge. Do you have so many logs online that they need more than one flat directory? Then go one more level down, but not 4. Also, putting the timestamp in the filename makes restores and greps of the files less confusing. But I think the problem is even bigger than that.

Some log files grow VERY RAPIDLY -- many megabytes per day. Some grow very slowly. Authlog comes to mind.

It's best to keep individual log files under some certain size. 1MB is great. 50MB is getting kinda big. But with these different growth rates, the tendency is to age some of them daily, others weekly, others yearly(!).

Then there's the annoying ones like wtmp that are binary. And let's not forget that some processes need to be restarted after a logfile move, while others don't. And some programs follow the paradigm 'my logfile must exist and be writable by me or else I will silently log nothing'. I've always considered writing some tool that would allow you to manage and age all your log files from one config file. Maybe the config file would be a table that lists the base logfile name, the interval at which it gets aged, the number of logs or amount of space to keep online before deleting them, etc. Anybody know of any such program?

It might be too much work for too little gain. The ultimate would be an ADAPTIVE process that keeps fewer old logs online if space is getting tight, etc. Personally I think an adaptive news expire program would be nice, too. I'll get right on these, as soon as I get this other stuff done for my boss.:-) Todd Williams Manager, Computer and Communication Systems MacNeal-Schwendler Corp. ('MSC'), 815 Colorado Blvd., Los Angeles, CA 90041 todd.williams@macsch.com (323)259-4973 geek n.: a carnival performer often billed as a wild man whose act usu. Includes biting the head off a live chicken or snake -Webster's New Collegiate Solaris systems use the /var directory to store logs and other local files so that the operating system can support other directories being mounted as read only, sometimes from file servers elsewhere on the network.