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Technologies

Getting documentation for OpenSolaris

If you want documentation for OpenSolaris, the best place to go is the OpenSolaris docs community. I have discovered by a coincidence that these guys have a ZIP archive with the most current versions of all documents for various OpenSolaris technologies. It's over 46 MB of zipped documents (wow) and the zipped tarball can be downloaded from dlc.sun.com. The link I provide goes to the current consolidation, if you check the link in the future it will contain updated zip...

Sunday, August 3, 2008 | Technologies | Read More

Leistung skaliert - Ein Nachtrag

Kuerzlich hatte ich Anlass, mir die Leistungssteigerung von UltraSPARC T1 auf UltraSPARC T2 noch einmal anzusehen.  Hier ein paar Ergebnisse - auch wenn die Werte natuerlich "alt und bekannt" sein sollten. Benchmark UltraSPARC T1 UltraSPARC T2 Einheit Skalierungsfaktor SPECweb2005 16407 41847 SPECweb2005 2,55 SPECjbb2005 74365 192055 bops 2,58 Lotus R6iNotes 16061 36240 NotesMark 2,26 SAP SD2 5530 10950 SAPS 1,98 Rechtlichs: Die offiziellen Benchmark-Ergebnisse fuer die genannten SPEC-Benchmarks...

Wednesday, July 30, 2008 | Technologies | Read More

Muting the Speakers

Support for audio is always a bit different on each operating system I use, even when running on the exact same laptop. For example, with Windows Vista when I plug into the headphone jack the laptop's built-in speakers are automatically muted.  That is not the case with Ubuntu 8.04 or OpenSolaris 2008.05. The audio chipset is an Intel 82801H and while I can get sound out of the speakers when running Ubuntu 8.04, I cannot seem to get the headphone jack to work.  :-/  With...

Monday, July 28, 2008 | Technologies | Read More

PowerTOP

PowerTOP v1.1 was released earlier this week. Dave Stewart initially turned me onto PowerTOP with his comment to my Results of Power Management blog. PowerTOP for OpenSolaris stems from what was originally a Linux project - its goal to show you what's chewing up your CPU cycles - especially important for laptop users looking to maximize battery life. Let's start with the results: The display can be broken into 5 parts: C States, P States, Wakeups, Power Usage and Top Causes...

Friday, July 25, 2008 | Technologies | Read More

Oracle Parallel

Immer wieder werde ich gefragt, ob sich die CMT-Server denn auch fuer Datenbanken, insbesondere Oracle, eignen.  Meine Antwort darauf ist schon fast stereotyp: "Es kommt auf die Last an."  Ist die Last gut parallelisiert oder parallelisierbar, und sind die Antwortzeiten einer einzelnen Transaktion nicht das kritische Erfolgskriterium, dann sind die Server ideal.  So wie bei jeder anderen durchsatzorientierten Anwendung :-) Wie man einige Standard-Szenarien bei Oracle ohne...

Thursday, July 24, 2008 | Technologies | Read More

Mounting an ISO

If you need to pull files from an ISO image file, is it unnecessary to first burn the image to a CD or DVD. By using the lofiadm command you can just mount the ISO and browse its contents. The lofiadm command associates a file with a block device (you must provide an absolute path to the file). The device that becomes associated with the ISO is returned: bleonard@opensolaris:~$ pfexec lofiadm -a ~/Desktop/sol-10-u5-ga-x86-dvd.iso /dev/lofi/1bleonard@opensolaris:~$ Running...

Tuesday, July 22, 2008 | Technologies | Read More