Slab allocation is a memory management mechanism intended for the efficient memory allocation of objects. In comparison with earlier mechanisms, it reduces fragmentation caused by allocations and deallocations. This technique is used for retaining allocated memory containing a data object of a certain type for reuse upon subsequent allocations of objects of the same type. It is analogous to an object pool, but only applies to memory, not other resources. Slab allocation was first introduced in the Solaris 2.4 kernel by Jeff Bonwick. It is now widely used by many Unix and Unix-like operating systems including FreeBSD and Linux. (Wikipedia).
The Auto Align & Space Shapes Macros Explained (Part 2)
Sign up for our Excel webinar, times added weekly: https://www.excelcampus.com/blueprint-registration/ This video is the 2nd part in the series where I explain the macros that automatically align, space, and distribute shapes horizontally or vertically. The VBA macros work on all types o
From playlist Macros & VBA
Adding, subtracting, multiplying and dividing two functions
👉 Learn how to apply operations to functions such as adding, subtracting, multiplying, and dividing to two functions. To add/subtract/multiply or divide two functions, we algebraically add/subtract/multiply or add the rules (contents) of the two functions. We will then simplify the sum, d
From playlist Add Subtract Multiply Divide Functions
Seating Chart Planner - Excel Hash 2021
Sign up for our Excel webinar, times added weekly: https://www.excelcampus.com/blueprint-registration/ This seating chart planner is packed with features to plan events or classrooms. It optimizes for small groups or families to use the least number of rows or tables. It also has user vi
From playlist Excel Formulas
2 Ways to Align & Distribute Shapes in Excel + VBA Macro (Part 1)
Sign up for our Excel webinar, times added weekly: https://www.excelcampus.com/blueprint-registration/ In this video I share 2 ways to align and evenly distribute shapes in Excel. This includes charts, slicers, images, and any other shape on a worksheet. Download the example file here: h
From playlist Macros & VBA
More arithmetic with polynumbers | Arithmetic and Geometry Math Foundations 59 | N J Wildberger
Polynumbers are extensions of numbers, but with a richer arithmetic. We will use them to provide a more solid foundation for the study of polynomials. Here we look at multiplying a positive polynumber by a scalar or number, connecting the multiplication of polynumbers with ordinary multip
From playlist Math Foundations
DEFCON 18: From No Way to 0day: Weaponizing the Unweaponizable 2/4
Speaker: Joshua Wise Many system administrators take a patch for a denial of service attack to be optional. What's the worst that could happen? Oh no -- a local user could crash the system. We'll just reboot it; MyPhpGresQL.py on Rails is totally transactional, right? Commit messages fi
From playlist DEFCON 18-2
Multiplying Roman Numerals Like the Romans Did [Math Mini]
The Roman Numeral system is particularly different from our decimal number system in this key respect: it has no place value. Rather than represent values by some power of 10 (or otherwise), roman numerals represent value additively. Each symbol stands for a certain value, and to get the c
From playlist Math Mini
DEFCON 18: From No Way to 0day: Weaponizing the Unweaponizable 3/4
Speaker: Joshua Wise Many system administrators take a patch for a denial of service attack to be optional. What's the worst that could happen? Oh no -- a local user could crash the system. We'll just reboot it; MyPhpGresQL.py on Rails is totally transactional, right? Commit messages fi
From playlist DEFCON 18-2
Writing an OS in Rust - Part 11c - Fixed-Size Block Allocator
This is my version of Philipp Oppermann's "BlogOS". It's a baremetal operating system that can boot off of a USB stick on any BIOS-compatible machine, which is pretty amazing. I'm going to be following the whole blog, one video at a time, and running the OS using QEMU instead of booting a
From playlist Rust OS
Operating System Full Course | Operating System Tutorials for Beginners
An operating system is system software that manages computer hardware and software resources and provides common services for computer programs. In this operating system full course you will be learning following topic in details. Hardware Resources Introduction
From playlist Operating System
Rusty Keyboard (002 part 2) - Getting the USB to work
This is #2 in my series of live streams on Twitch where I worked on making my own keyboard and writing its firmware in Rust. This stream I got the USB device stack working on the keyboard microcontroller, getting it to show up on the host as a serial device. This stream was broken up i
From playlist Rusty Keyboard
How to Layout Panel Charts or Shape Grids with a VBA Macro in Excel (Part 3)
Sign up for our Excel webinar, times added weekly: https://www.excelcampus.com/blueprint-registration/ Learn how to quickly layout your charts in a panel chart or shape grid with a VBA macro in Excel. Download the Excel file: https://www.excelcampus.com/vba/panel-charts-shape-grid-macro/
From playlist Excel Macros & VBA
Lecture 4 - Elementary data structures
This is Lecture 4 of the CSE373 (Analysis of Algorithms) course taught by Professor Steven Skiena [http://www.cs.sunysb.edu/~skiena/] at Stony Brook University in 2007. The lecture slides are available at: http://www.cs.sunysb.edu/~algorith/video-lectures/2007/lecture4.pdf More informati
From playlist CSE373 - Analysis of Algorithms - 2007 SBU
!!Con West 2020 - Jordan Hendricks: Tex-Mex and malloc(3C): Restaurant Hosts and Memory Allocators!
Presented at !!Con West 2020: http://bangbangcon.com/west Before my life as a systems engineer, I worked for years as a hostess at an extremely popular Oklahoman Tex-Mex restaurant, whose wait list would routinely top 20-40 parties in length and 1-2 hour wait times. The host staff had a c
From playlist !!Con West 2020
24C3: From Ring Zero to UID Zero
Speakers: sgrakkyu, twiz A couple of stories about kernel exploiting The process of exploiting kernel based vulnerabilities is one of the topics which have received more attention (and kindled more interest) among security researchers, coders and addicted. This talk reprises and c
From playlist 24C3: Full steam ahead
👉 Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of adding/subtracting algebraic expressions together. To add or subtract two linear functions, w
From playlist Add Subtract Multiply Divide Functions
CERIAS Security: Ribbons A Partially Shared Memory Programming Model 4/6
Clip 4/6 Speaker: Kevin Hoffman We present ribbons, a shared memory programming model that allows for more implicit sharing of memory than processes but is more restrictive than threads. Ribbons structure the heap into protection domains. Privileges between these protection domains are c
From playlist The CERIAS Security Seminars 2010
Operations with functions and finding the domain of each
👉 Learn how to apply operations to functions such as adding, subtracting, multiplying, and dividing to two functions. To add/subtract/multiply or divide two functions, we algebraically add/subtract/multiply or add the rules (contents) of the two functions. We will then simplify the sum, d
From playlist Add Subtract Multiply Divide Functions
!!Con 2016 - The Tales of the Cursed Operating Systems Textbook! By Kiran Bhattaram
The Tales of the Cursed Operating Systems Textbook! By Kiran Bhattaram I have a cursed operating systems textbook --- each chapter I read unearths a new bug in the systems I work on. Come hear my tales of woe: the chapter on kernel data structures that conjured up memory leaks INSIDE TH
From playlist !!Con 2016
Learn how to subtract two functions
👉 Learn how to add or subtract two functions. Given two functions, say f(x) and g(x), to add (f+g)(x) or f(x) + g(x) or to subtract (f - g)(x) or f(x) - g(x) the two functions we use the method of adding/subtracting algebraic expressions together. To add or subtract two linear functions, w
From playlist Add Subtract Multiply Divide Functions