1 votes 1 votes A) Does C-Scan , Look and C-Look suffer from starvation? B) is TLB miss and no page fault possible? C)hardware access to devices is usually unavailable in user mode - true or false A_i_$_h asked Oct 13, 2017 • edited Oct 13, 2017 by A_i_$_h A_i_$_h 262 views answer comment Share Follow See 1 comment See all 1 1 comment reply Rupendra Choudhary commented Oct 13, 2017 reply Follow Share A) No , generally they don't suffer. https://en.wikipedia.org/wiki/LOOK_algorithm#Description https://cs.stackexchange.com/questions/37460/is-starvation-possible-in-look-algorithm https://stackoverflow.com/questions/7293025/how-can-c-scan-elevator-algorithm-cause-starvation B) Let suppose your OS didn't copied the recently used data entries in TLB , so what data mappings are actually present in page table and data is present in physical memory but when TLB is accessed it will way , I Miss. https://gateoverflow.in/150841/tlb-and-page-fault https://gateoverflow.in/153152/true-false C) hardware is generally accessed in Kernel mode so Yes! usually unavailable in user mode , due to security reasons.. 1 votes 1 votes Please log in or register to add a comment.
