understanding mmap, the workhorse behind keeping memory access efficient in linux

[yonahcitron]

It’s a joke that this is available online for free. Absolute gold. Love every minute!

[SH-iygw]

Thanks so much for making these lectures available for free! So helpful and such a great lecture.

[jylim]

wished my lecturers were like this. great one man, cheers

[whatahead]

Greetings from Brazil Chris, just wanna say thank you, you're really helping me :)

[kafoby]

Thank you for making these lectures FREE!!

[miriyalajeevankumar]

Thank you professor for these lectures.💌

[stevewu]

Thank you, Chris, I learned a lot from you!

[flyxtop]

thanks I learned some things today again! (I knew this earlier but it's interesting every program or library exists as a file)

[urbankoistinen]

It is also worthwhile to test that the system does what the documentation seems to imply it should do.
Try mmap on a large file using different flags, see what happens when the file is cashed in main memory.

[ninjazhu]

That is one method of implementing VM. There are multiple methods. Not all hardware has the came features which limits sometimes which techniques are used and can even force you to think outside the box which programmers should do anyway.

[glenyeldho]

Waiting for the next video in this series 😁😁

[wonderfulworld]

When someone on Youtube compress your 4 hour lecture into 20mns :D

[demablogia]

Great video, thanks. One question: when source is compiled & linked into an ELF file, this file doesn't have any virtual address but local offsets. So, I guess, someone and sometime translate those local offsets to virtual adresses . Is the code (.text, .data ) stored into real memory modified ( by someone ) with virtual address references ? Or code stored into real memory still has got offsets ?

[gleventhal]

Boy, do I love when a native english speaker who actually knows the topic well presents a technical topic this well. Thanks for being you!

[venumaj]

Is it possible to use mmap which is huge pages backed ?

[winstonacousticstudio]

how many weeks does this course last for?