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gopher gallery consists of a shopping mall and a cart ride that covers the 150 acre habitat there are m visitors and n single-person vehicles
determining the time quantum for a job is a critical taskgiven the assumptions that the average switching time between processes is s and the average
consider a particular system that does not have an interrupting clock the only way a thread can lose the processor is to voluntarily surrender
q a given that the first three necessary conditions for a deadlock are in place comment on the feasibility of the following strategy all processes
what does the last four digits 0010 of the above dump represent what action will the destination node takes when it receives this packetthe last four
the following is a dump of a tcp header in hexadecimal format00cd0018 00000ef1 00000d5d 502200d1 01bf0010we need to first split the above hex as
purposethis is intended to help you develop your understanding of shell scripting in both a windows and unix environmentdeliverablesfor both the
a working ubuntu linux operating system you can use a live-cd to complete this assignmentcreate an empty text file named assignment6txt in your
this assignment is based on programming project 640 in silbershatz implement the producerxconsumer program according to the instructions for project
add synchronization to your solutions to hw 3 to eliminate all of the race conditions you should not remove any of the sleep commands that you
modern networks are not implemented as a single piece of software that would render the task of dealing with multiple technologies and manufacturers
when we download a movie from the internet we dont care about say packet sizes however even ifwe are not aware of howlow-level details of networks
networks and operating systems have a lot of overlap in this course howeverwe are not going to discuss networking in detail but rather focus on the
the producer-consumermodel above has a standard human analogy of an assembly line humans have specialized skills however whereas threads running the
the general idea of a producer-consumer architecture is related to building a pipeline of threads similar to the web spider from project 2 each step
another solution then would be to keep a pool of threads whenever a new task arrives the system would simply get a thread from pool and set that
suppose we want to program a web server we could easily do so without using concurrency as followswhiletruewait connectionread from socket and parse
garbage collectors trade space for time if we collect all the time which requires a lot of processing time the gc allocator will use the least memory
conservative gc can be used for languages such as c and c which were not explicitly designed for garbage collection this is a non-copying technique a
semispace works by maintaining two disjoint areas from which memory can be allocated these areas are called the from-space and the to-space at rst
the idea of reference counting is to maintain for every object the total number of references to that object ie the number of incoming pointers
the objects that a program can access directly are those objects which are referenced by local vari-ables on the processor stack or by any
the dynamic memory allocator is a layer between the application and the os managing heap objects when a program requests memory from the allocator
allocators can also be used to avoid problems with unsafe languages c and c are pervasive with huge amounts of existing code they are also
some people write custom memory allocators to meet their specic needs although this is not needed for most of the applications it is also not