Operating Systems 2018F Lecture 8 - Revision history

Soma at 19:48, 10 October 2018

2018-10-10T19:48:03Z

← Older revision		Revision as of 19:48, 10 October 2018
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	==Video==		==Video==

	Video from the lecture given on September 26, 2018 [https://homeostasis.scs.carleton.ca/~soma/os-2018f/lectures/comp3000-2018f-lec08-20180928.m4a is now available].		Video from the lecture given on September 28, 2018 [https://homeostasis.scs.carleton.ca/~soma/os-2018f/lectures/comp3000-2018f-lec08-20180928.m4a is now available].

	==Code==		==Code==

R.samanfar: /* Notes */

2018-10-02T00:00:33Z

Notes

← Older revision		Revision as of 00:00, 2 October 2018
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	*How do you do backups?		*How do you do backups?
	**'''rsync''': a fast, versatile, remote (and local) file-copying tool		**'''rsync''': a fast, versatile, remote (and local) file-copying tool

	[[File:Lec8-1.png\|none\|800px]]		[[File:Lec8-1.png\|none\|800px]]


	*Send a file or directory to an address:		*Send a file or directory to an address:

	[[File:Lec8-2.png\|none\|800px]]		[[File:Lec8-2.png\|none\|800px]]
	[[File:Lec8-3.png\|none\|800px]]		[[File:Lec8-3.png\|none\|800px]]


	*Writing an alias for '''rsync''' in '''~/.bashrc''':		*Writing an alias for '''rsync''' in '''~/.bashrc''':

	[[File:Lec8-4.png\|none\|800px]]		[[File:Lec8-4.png\|none\|800px]]


	*'''mmap''', '''munmap''' - map or unmap files or devices into memory		*'''mmap''', '''munmap''' - map or unmap files or devices into memory

	[[File:Lec8-5.png\|none\|800px]]		[[File:Lec8-5.png\|none\|800px]]


	*'''mmap''' allows us to allocate memory to hold the contents of the file in a memory efficient way. It does this _lazily_ meaning that it only loads into memory what is being read, at the time that it is being read.		*'''mmap''' allows us to allocate memory to hold the contents of the file in a memory efficient way. It does this _lazily_ meaning that it only loads into memory what is being read, at the time that it is being read.

R.samanfar: /* Notes */

2018-10-01T23:57:22Z

Notes

← Older revision		Revision as of 23:57, 1 October 2018
Line 22:		Line 22:
	*How do you do backups?		*How do you do backups?
	**'''rsync''': a fast, versatile, remote (and local) file-copying tool		**'''rsync''': a fast, versatile, remote (and local) file-copying tool
			[[File:Lec8-1.png\|none\|800px]]

	*Send a file or directory to an address:		*Send a file or directory to an address:
			[[File:Lec8-2.png\|none\|800px]]
			[[File:Lec8-3.png\|none\|800px]]

	*Writing an alias for '''rsync''' in '''~/.bashrc''':		*Writing an alias for '''rsync''' in '''~/.bashrc''':
			[[File:Lec8-4.png\|none\|800px]]

	*'''mmap''', '''munmap''' - map or unmap files or devices into memory		*'''mmap''', '''munmap''' - map or unmap files or devices into memory

			[[File:Lec8-5.png\|none\|800px]]

	*'''mmap''' allows us to allocate memory to hold the contents of the file in a memory efficient way. It does this _lazily_ meaning that it only loads into memory what is being read, at the time that it is being read.		*'''mmap''' allows us to allocate memory to hold the contents of the file in a memory efficient way. It does this _lazily_ meaning that it only loads into memory what is being read, at the time that it is being read.

R.samanfar: /* Notes */

2018-10-01T23:54:18Z

Notes

← Older revision		Revision as of 23:54, 1 October 2018
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	==Notes==		==Notes==

			*Things you can do with remote linux server:
			** '''ssh''' into the server and use the command line
			** using `x2goclient` can have remote desktop access

			*The “cloud” just means computer infrastructure. The “cloud” is really just someone else computer.

			*'''scp''' : secure copy (remote file copy program)

			*Download `WinSCP` for remote file transfers on windows.
			*On macOS or Linux use `scp` for remote file transfer.

			*How do you do backups?
			**'''rsync''': a fast, versatile, remote (and local) file-copying tool
			*Send a file or directory to an address:

			*Writing an alias for '''rsync''' in '''~/.bashrc''':

			*'''mmap''', '''munmap''' - map or unmap files or devices into memory


			*'''mmap''' allows us to allocate memory to hold the contents of the file in a memory efficient way. It does this _lazily_ meaning that it only loads into memory what is being read, at the time that it is being read.

Soma: Created page with "==Video== Video from the lecture given on September 26, 2018 [https://homeostasis.scs.carleton.ca/~soma/os-2018f/lectures/comp3000-2018f-lec08-20180928.m4a is now available]...."

2018-09-28T22:45:10Z

Created page with "==Video== Video from the lecture given on September 26, 2018 [https://homeostasis.scs.carleton.ca/~soma/os-2018f/lectures/comp3000-2018f-lec08-20180928.m4a is now available]...."

New page

==Video==

Video from the lecture given on September 26, 2018 [https://homeostasis.scs.carleton.ca/~soma/os-2018f/lectures/comp3000-2018f-lec08-20180928.m4a is now available].

==Code==

Code and files from the lecture (captured as they were at the end) are available [https://homeostasis.scs.carleton.ca/~soma/os-2018f/code/lec08/ here].

==Notes==