id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	field_blocks	field_dependson	field_seealso
10	Register window thrashing	Jakub Jermář		"The following snippet of userspace pseudo code demonstrates situation in which the kernel might repeatedly spill and fill several windows from the OTHERWIN area:

for (i = 0; i < 10000; i++) {
        syscall();
}

If the syscall handler spills N userspace windows, all N windows will be restored from the userspace window buffer on return from the syscall in each iteration.

This sub-optimal behaviour was first pointed out by Mikulas Patocka."	enhancement	new	minor		helenos/kernel/sparc64	mainline