Samsung Linux CUPS USB Printing

Ever since upgrading from Mandriva 2010.0(?) to 2010.1 (and also 2010.2), both of my Samsung laser printers have been intermittent. Print jobs would often be silently discarded. CUPS logs show that the print jobs are completed, the printer would warm up, the printer’s LED blinks once or twice, then the print job is “complete”. But nothing gets printed. . . . → Read More: Samsung Linux CUPS USB Printing

Linux SMT-Aware Process Scheduling

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Process scheduling for multicore multithreaded (SMT or HT) systems adds a new challenge to an operating system’s process scheduler. Two threads scheduled on different cores will run faster than two threads scheduled onto different thread contexts of the same core because much of the hardware resources are shared between SMT thread contexts. This can . . . → Read More: Linux SMT-Aware Process Scheduling