From: Rik van Riel <riel@redhat.com> Add a userspace visible knob to tell the VM to keep an extra amount of memory free, by increasing the gap between each zone's min and low watermarks. This is useful for realtime applications that call system calls and have a bound on the number of allocations that happen in any short time period. In this application, extra_free_kbytes would be left at an amount
BFQ is a proportional-share storage-I/O scheduler that also supports cgroups. Available in Linux since 4.12, BFQ features the following performance (benchmark results here), on any type of storage medium (embedded flash storage, HDDs, SATA or NVMe SSDs, ...) and on systems ranging from minimal embedded systems to high-end servers: Low latency for interactive tasks Under load, BFQ loads application
Recent posts: 07 Feb 2026 » Why I joined OpenAI 05 Dec 2025 » Leaving Intel 28 Nov 2025 » On "AI Brendans" or "Virtual Brendans" 22 Nov 2025 » Intel is listening, don't waste your shot 17 Nov 2025 » Third Stage Engineering 04 Aug 2025 » When to Hire a Computer Performance Engineering Team (2025) part 1 of 2 22 May 2025 » 3 Years of Extremely Remote Work 01 May 2025 » Doom GPU Flame Graphs 29 Oct 2
February 18, 2011 This article was contributed by Arnd Bergmann Flash drives are getting larger and cheaper; as a result, they are showing up in an increasing number of devices. These drives are not the same as the rotating-media drives which preceded them, and they have different performance characteristics. If Linux is to make proper use of of this class of hardware, it must drive it in a way wh
![Optimizing Linux with cheap flash drives [LWN.net]](https://cdn-ak-scissors.b.st-hatena.com/image/square/d8fe3607af9f9d59bea7ade486ab803285f31138/backend=imagemagick;height=288;version=1;width=512/https%3A%2F%2Fproxy.goincop1.workers.dev%3A443%2Fhttps%2Fstatic.lwn.net%2Fimages%2F2011%2Farnd-ssd%2Fextrememory-results-sm.png)
This index covers articles published in the LWN.net Kernel Page. All articles from the beginning of 2004 have been entered here. Academic systems Realtime Linux: academia v. reality (July 26, 2010) Popcorn Linux pops up on linux-kernel (May 5, 2020) Access control lists Rich access control lists (October 20, 2015) ACCESS_ONCE() ACCESS_ONCE() (August 1, 2012) ACCESS_ONCE() and compiler bugs (Decemb
Is Parallel Programming Hard, And, If So, What Can You Do About It? The current version is v2025.12.18a [PDF] (single-column format [PDF], ebook format [PDF], change log). The default double-column format is easiest on both the trees and the eyes in paperback book form. The single-column format works well on large-format ebook readers. Smartphones and smaller ebook readers get better results with
What every programmer should know about memory, Part 1 [Editor's introduction: Ulrich Drepper recently approached us asking if we would be interested in publishing a lengthy document he had written on how memory and software interact. We did not have to look at the text for long to realize that it would be of interest to many LWN readers. Memory usage is often the determining factor in how softwar
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
