Can eBPF save us from the Data Deluge?from the Data Deluge? A case for file filtering in eBPF Giulia Frascaria October 28, 2020 1 The data deluge on modern storage 2 Compute node CPU Network Storage node Flash The data deluge on CPU Network Storage node Flash Data DoS in reverse! 11 Compute node CPU Network Storage node Flash Data So similar yet so different ● DoS is malicious ● Data transfer is business-critical ● We 12 So similar yet so different ● DoS is malicious ● Data transfer is business-critical ● We can blindly drop DoS 13 But could we reduce data transfer size? eBPF filter-reduce 14 Filter Reduce input0 码力 | 18 页 | 266.90 KB | 1 年前3
Moxa Industrial Linux 3.0 (Debian 11)
Manual for Arm-based Computers
Version 1.0, January 2023.............................................................................. 50 Monitoring the Data Usage ........................................................................................... configuration, and additional security tools/utilities preinstalled To identify the security model that you have, use the mx-interface-mgmt deviceinfo command to display the information. Only the following table compares the main features in the standard and secure models. Standard Model Secured Model IEC 62443-4-2 SL2 Host Device Certified N/A Security Configuration Default Debian0 码力 | 111 页 | 2.94 MB | 1 年前3
openEuler OS Technical Whitepaper
Innovation Projects
(June, 2023)Information Technology Technology Communication 10,000 + mainstream applications on cloud native, big data CND, MEC, industrial control,etc. Integrated ecosystems and extensive compatibility through distributed maintenance status. Software Package Repositories EPOL Image EUR/oepkgs/... Desktop/SDS/ DB/Big data/... kernel/glibc/ system/GCC/... Core/Base package repository Software package repository of the enablement Linux kernel x86, Arm, RISC-V GPU NPU Real-time kernel Security kernel Database Big data Resource orchestration Desktop system Industrial application ... ... openEuler OpenHarmony / DSoftBus0 码力 | 116 页 | 3.16 MB | 1 年前3
Measuring Woody: The Size of Debian 3.0(almost twice than Red Hat 9, released about 8 months later), showing that the Debian development model (based on the work of a large group of voluntary developers spread around the world) is at least as is also shown that if Debian had been developed using traditional proprietary methods, the COCOMO model estimates that its cost would be close to $6.1 billion USD to develop Debian 3.0. In addition, we Wheeler’s fine paper [Wheeler2001]. We encourage the reader to at least browse it, and compare the data it offers for Red Hat Linux with those found here. The structure of this paper is as follows. Next0 码力 | 15 页 | 111.82 KB | 1 年前3
Ubuntu Desktop Guidethe guest session. A guest cannot view the home folders of other users, and by default any saved data or changed settings will be removed/reset at logout. It means that each session starts with a fresh menu bar and uncheck Enable Wireless. What do WEP and WPA mean? WEP and WPA are ways of encrypting data on wireless networks. Why does my wireless network keep disconnecting? You might have low signal Transmission Unit, which is the maximum size of a chunk of data that can be sent over the network. When files are sent over a network, data is broken up into small chunks (or packets). The optimal0 码力 | 1709 页 | 5.81 MB | 1 年前3
Cilium v1.7 Documentationrun in standalone mode or as a cluster making it a great choice for local testing with multi-node data paths. Agent nodes are joined to the master node using a node-token which can be found on the master wildcards for the kubernetes block like this: kubectl -n kube-system edit cm coredns [...] apiVersion: v1 data: Corefile: | .:53 { errors health kubernetes cluster.local in-addr.arpa configuration: apiVersion: v1 kind: ConfigMap metadata: name: cni-configuration namespace: cilium data: cni-config: |- { "cniVersion": "0.3.0", "name": "azure", "plugins": [0 码力 | 885 页 | 12.41 MB | 1 年前3
openEuler 21.03 技术白皮书experience. 8. Early Departure Time (EDT) model for sending TCP packets: It breaks the limitation of the TCP framework. This model adds an EDT timestamp to each data packet based on the scheduling policy improvement in TCP performance. 9. MultiPath TCP: It improves performance and reliability in mobile and data scenarios. MultiPath TCP supports concurrent transmission of multiple substreams in load balancing sequential write performance of large solid-state drive (SSD) blocks and the performance of the double data rate (DDR) persistent memory. 12. io_uring: This is a new asynchronous I/O framework that supports0 码力 | 21 页 | 948.66 KB | 1 年前3
The Path to GitOpsOrigins in DevOps Kubernetes and containers Cloud-Native DevOps A DevOps Operating Model GitOps Principles Declarative Versioned and Immutable Pulled Automatically What is GitOps? The Path to GitOps | 9 Weaveworks [1.6] is credited with pioneering the GitOps model. The story, de- scribed in a 2021 blog post [1.7], is very interesting. Back in 2017, Weaveworks was practitioners to further refine their practices. If DevOps is the culture, GitOps is the operating model that is best suited for cloud-na- tive architectures. So, although GitOps isn’t necessarily new, it0 码力 | 45 页 | 1.09 MB | 1 年前3
Cilium v1.6 Documentationwildcards for the kubernetes block like this: kubectl -n kube-system edit cm coredns [...] apiVersion: v1 data: Corefile: | .:53 { errors health kubernetes cluster.local in-addr.arpa configuration: apiVersion: v1 kind: ConfigMap metadata: name: cni-configuration namespace: cilium data: cni-config: |- { "cniVersion": "0.3.0", "name": "azure", "plugins": [ configuration: apiVersion: v1 kind: ConfigMap metadata: name: cni-configuration namespace: cilium data: cni-config: |- { "cniVersion": "0.3.0", "name": "azure", "plugins": [0 码力 | 734 页 | 11.45 MB | 1 年前3
openEuler 21.09 技术白皮书evaluation, and various development tools such as secPaver, to simplify security configuration. Data center Cloud native Edge HPC Embedded/Industrial … CPU: x86, ARM, RISC-V DPU NPU Media Bus Server codes (PACs): The register value is authenticated before being used as a pointer to access the data or code, so as to defend against return-oriented programming (ROP) and jump-oriented programming incurred in managing the huge page memory. eXpress Data Path (XDP): An eBPF-based high performance, programmable network data path that processes data before network packets enter the network protocol0 码力 | 36 页 | 3.40 MB | 1 年前3
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