Randon ASCII

JANUARY 12, 2022

In 2004 I was working for Microsoft in the Xbox group, and a new console was being created. The Xbox 360 CPU had three PowerPC cores and a 1 MB L2 cache and these features are clearly visible on the wafer. I used to know what the visible elements of the CPU cores were (L1 caches? To the left of that is one of the CPU cores.

Cache 126

Cache Latency Benchmarking Hardware 126

Brendan Gregg

MARCH 16, 2024

To explain this example in more detail: The profiler periodically interrupts software execution, and for those disconnected stacks it happens to be the execution of the kernel software ("vfs*", "ext*", etc.). These partial stacks get grouped together on the left. Click here for a longer explanation.

Java 145

Java Cache Google Hardware 145

The Morning Paper

NOVEMBER 5, 2019

Breaking that assumption allowed Ceph to introduce a new storage backend called BlueStore with much better performance and predictability, and the ability to support the changing storage hardware landscape. The storage backend is the software module directly managing the storage device attached to physical machines.

Storage 64

Storage Systems Hardware Efficiency 64

SQL Server According to Bob

JANUARY 11, 2020

Microsoft SQL Server I/O Basics Author: ​​ Bob Dorr, Microsoft SQL Server Escalation Published: ​​ December, 2004 SUMMARY: ​​ Learn the I/O requirements for Microsoft SQL Server database file operations. © ​​ 2004 Microsoft Corporation. ​​ All rights reserved.

Servers 40

Servers Cache Media Hardware 40

SQL Server According to Bob

JANUARY 11, 2020

Time of Last Access The time of last access is a caching ​​ algorithm ​​ that enables ​​ cache ​​ entries to be ordered by their ​​ access times.

Servers 40

Servers Cache Database Media 40

All Things Distributed

JANUARY 18, 2012

A number of outages at the height of the 2004 holiday shopping season can be traced back to scaling commercial technologies beyond their boundaries. Dynamo might have been the best technology in the world at the time but it was still software you had to run yourself. And nobody wanted to learn how to do that if they didnâ??t

Scalability 167

Scalability Database Ecommerce Latency 167