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MBUF Problems and solutions on VxWorks PowerPoint PPT Presentation

MBUF Problems and solutions on VxWorks - Neither ics-accl-srv1 nor the CA gateway were able to get to dtl-hprf-ioc3. Via 'cu', the IOC looked fine except for error messages ...

Neither ics-accl-srv1 nor the CA gateway were able to get to dtl-hprf-ioc3. Via 'cu', the IOC looked fine except for error messages ...

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MBUF Problems and solutions on VxWorks - Neither ics-accl-srv1 nor the CA gateway were able to get to dtl ... At BNL, Larry Hoff saw the problem on an IOC where the network tasks were being starved. ...

Neither ics-accl-srv1 nor the CA gateway were able to get to dtl ... At BNL, Larry Hoff saw the problem on an IOC where the network tasks were being starved. ...

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APIC - size = requested system buffer (mbuf) size ... lrcsuns-a # ATM address of ATMARP server; omit ... Start by using the FileTransfer utility. Get it to ...

size = requested system buffer (mbuf) size ... lrcsuns-a # ATM address of ATMARP server; omit ... Start by using the FileTransfer utility. Get it to ...

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Interfaces : Ethernet PowerPoint PPT Presentation

Interfaces : Ethernet - Interfaces : Ethernet 2005. 5. 23( ) icebyung@hufs.ac.kr

Interfaces : Ethernet 2005. 5. 23( ) icebyung@hufs.ac.kr

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NetBSD Kernel Topics: PowerPoint PPT Presentation

NetBSD Kernel Topics: - Understand the structure of IP processing in NetBSD ... Vers. HLen. TOS. ID. Fragment Offset. Source Address. Destination Address. Total length. Flags ...

Understand the structure of IP processing in NetBSD ... Vers. HLen. TOS. ID. Fragment Offset. Source Address. Destination Address. Total length. Flags ...

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ecs150 Spring 2006: Operating System PowerPoint PPT Presentation

ecs150 Spring 2006: Operating System - The main data structure for network processing in the kernel. Why can't we use 'kernel memory management' facilities such as kernel malloc ...

The main data structure for network processing in the kernel. Why can't we use 'kernel memory management' facilities such as kernel malloc ...

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TCPIP Stack Introduction: Looking Under the Hood PowerPoint PPT Presentation

TCPIP Stack Introduction: Looking Under the Hood - ... in its input queue: verifies chksum, processes IP options, sanity checks. ... UDP sanity checks, decides whether a process should receive dgram. ...

... in its input queue: verifies chksum, processes IP options, sanity checks. ... UDP sanity checks, decides whether a process should receive dgram. ...

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RTEMS overview PowerPoint PPT Presentation

RTEMS overview - RTEMS overview W. Eric Norum 2006-06-12 Introduction RTEMS is a tool designed specifically for real-time embedded systems The RTEMS product is an executive not a full ...

RTEMS overview W. Eric Norum 2006-06-12 Introduction RTEMS is a tool designed specifically for real-time embedded systems The RTEMS product is an executive not a full ...

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Zero Copy - 1. Zero Copy. Chia-Tai Tsai. tai@cis.nctu.edu.tw. 2. Introduction. Data copy and Checksum overhead dominates processing time for high throughput ...

1. Zero Copy. Chia-Tai Tsai. tai@cis.nctu.edu.tw. 2. Introduction. Data copy and Checksum overhead dominates processing time for high throughput ...

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RTEMS Use at SLAC PowerPoint PPT Presentation

RTEMS Use at SLAC - RTEMS Use at SLAC Ernest Williams

RTEMS Use at SLAC Ernest Williams

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SNS Control Systems PowerPoint PPT Presentation

SNS Control Systems - Timers. Connection management. Timeouts. Retries. Latency ... Bring NIC online. T 3 sec. PowerOn IOC. T - 0 sec. EPICS neighbors come. T 3.02 sec ...

Timers. Connection management. Timeouts. Retries. Latency ... Bring NIC online. T 3 sec. PowerOn IOC. T - 0 sec. EPICS neighbors come. T 3.02 sec ...

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FFPF: Fairly Fast Packet Filters PowerPoint PPT Presentation

FFPF: Fairly Fast Packet Filters - FFPF: Fairly Fast Packet Filters. uspace. kspace. nspace. Vrije ... Denial of Service attacks. difficult at high speeds. spread of SAPPHIRE in 30 minutes ...

FFPF: Fairly Fast Packet Filters. uspace. kspace. nspace. Vrije ... Denial of Service attacks. difficult at high speeds. spread of SAPPHIRE in 30 minutes ...

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TCP/IP Illustrated Volume 2 Chapter 19 Routing Requests and Routing Messages PowerPoint PPT Presentation

TCP/IP Illustrated Volume 2 Chapter 19 Routing Requests and Routing Messages - Title: PowerPoint Presentation Last modified by: mysung Created Date: 1/1/1601 12:00:00 AM Document presentation format: Other titles

Title: PowerPoint Presentation Last modified by: mysung Created Date: 1/1/1601 12:00:00 AM Document presentation format: Other titles

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RTEMS overview - RTEMS is a tool designed specifically for real-time embedded systems ... Preemption. Rate Monotonic Scheduling. Sporadic servers ...

RTEMS is a tool designed specifically for real-time embedded systems ... Preemption. Rate Monotonic Scheduling. Sporadic servers ...

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Linux TCPIP Stack PowerPoint PPT Presentation

Linux TCPIP Stack - Set three fields in the IP header - IP length, TTL and Tos. Pass the datagram to IP ... Determine length of data that should. be transmitted and the flags to be used. ...

Set three fields in the IP header - IP length, TTL and Tos. Pass the datagram to IP ... Determine length of data that should. be transmitted and the flags to be used. ...

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Web Hosting for Fame and Fortune PowerPoint PPT Presentation

Web Hosting for Fame and Fortune - A Guide to using Apache. as your web-server solution. Why use Apache? Extremely portable ... Use MyVirtualHost www.apache.org 80 /projects/apache/web ...

A Guide to using Apache. as your web-server solution. Why use Apache? Extremely portable ... Use MyVirtualHost www.apache.org 80 /projects/apache/web ...

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Shared Memory Multiprocessors PowerPoint PPT Presentation

Shared Memory Multiprocessors - How best to exploit ... 'New' models: seek to offer a more transparent way of ... Time warp... As it turns out, Disco found a commercially ...

How best to exploit ... 'New' models: seek to offer a more transparent way of ... Time warp... As it turns out, Disco found a commercially ...

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Network Level Framing in INSTANCE PowerPoint PPT Presentation

Network Level Framing in INSTANCE - P l Halvorsen, Thomas Plagemann, and Vera Goebel ... Prepend UDP and IP headers. Prepare pseudo header for. checksum, clear unknown fields ...

P l Halvorsen, Thomas Plagemann, and Vera Goebel ... Prepend UDP and IP headers. Prepare pseudo header for. checksum, clear unknown fields ...

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MOBILE TV - Shut down of analog TV will free up huge frequency capacity for DVB-T usage ... Store videos to mobile format and manage them with Nokia PC Suite ...

Shut down of analog TV will free up huge frequency capacity for DVB-T usage ... Store videos to mobile format and manage them with Nokia PC Suite ...

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Linux Real-Time Introduzione a POSIX1003.1b PowerPoint PPT Presentation

Linux Real-Time Introduzione a POSIX1003.1b - Linux Real-Time Introduzione a POSIX1003.1b E.Mumolo, DEEI mumolo@units.it Il Sistema Operativo Linux Numerazione versioni di linux: a.b.c (es. 2.4.16) dove a no ...

Linux Real-Time Introduzione a POSIX1003.1b E.Mumolo, DEEI mumolo@units.it Il Sistema Operativo Linux Numerazione versioni di linux: a.b.c (es. 2.4.16) dove a no ...

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ZeroCopy TCPIP PowerPoint PPT Presentation

ZeroCopy TCPIP - Intelligent network interface cards (I-NIC) Embedded applications (Power,Size) Used in: ... Custom ASICs. May have entire networking protocols in dedicated hardware. ...

Intelligent network interface cards (I-NIC) Embedded applications (Power,Size) Used in: ... Custom ASICs. May have entire networking protocols in dedicated hardware. ...

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ARP Address Resolution Protocol PowerPoint PPT Presentation

ARP Address Resolution Protocol - The arpwhohas function is normally called by arpresolve to ... Delete unreferenced entries. arpresolve Function. Obtain the Ethernet address for an IP address ...

The arpwhohas function is normally called by arpresolve to ... Delete unreferenced entries. arpresolve Function. Obtain the Ethernet address for an IP address ...

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Kernel Memory Allocation 1 PowerPoint PPT Presentation

Kernel Memory Allocation 1 - Free pages can be returned to the paging system and later recovered for other zones ... coloring area (unused) slab data. unused space. extra space for linkage ...

Free pages can be returned to the paging system and later recovered for other zones ... coloring area (unused) slab data. unused space. extra space for linkage ...

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User Level Communications and Fast Messaging Layers PowerPoint PPT Presentation

User Level Communications and Fast Messaging Layers - For small packets (like NFS traffic) found that 25% of packet processing time ... of the Winter 1993 USENIX Conference, pages 249--258, San Diego, CA, 1993. ...

For small packets (like NFS traffic) found that 25% of packet processing time ... of the Winter 1993 USENIX Conference, pages 249--258, San Diego, CA, 1993. ...

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Programmazione RTAI PowerPoint PPT Presentation

Programmazione RTAI - Programmazione RTAI E.Mumolo, DEEI mumolo@units.it Programmazione in RTAI Approccio RTAI: Uno schedulatore Real Time rimpiazza lo schedulatore di Linux Intercetta gli ...

Programmazione RTAI E.Mumolo, DEEI mumolo@units.it Programmazione in RTAI Approccio RTAI: Uno schedulatore Real Time rimpiazza lo schedulatore di Linux Intercetta gli ...

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The%20Evolution%20of%20Libnet PowerPoint PPT Presentation

The%20Evolution%20of%20Libnet - Firewalk, Libipg, Libnet, Libsf, Libradiate, various ... Mid-level interface, packets built at the IP layer and above. No link header needs to be built ...

Firewalk, Libipg, Libnet, Libsf, Libradiate, various ... Mid-level interface, packets built at the IP layer and above. No link header needs to be built ...

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SG Cluster - Make current application into a scalable system with little or no modification ... ICP to query its neighbor and parnet proxys for a specific object and use HTTP ...

Make current application into a scalable system with little or no modification ... ICP to query its neighbor and parnet proxys for a specific object and use HTTP ...

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CS244A Review Session PowerPoint PPT Presentation

CS244A Review Session - Goal: Your web proxy will run over your transport layer, with the packets routed ... STCP-based web proxy. Modify your HW1 to use STCP. Should just be a few ...

Goal: Your web proxy will run over your transport layer, with the packets routed ... STCP-based web proxy. Modify your HW1 to use STCP. Should just be a few ...

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Eclipse: an Operating System with Quality of Service support PowerPoint PPT Presentation

Eclipse: an Operating System with Quality of Service support - company A. page 2. 0.4. 0.4. 0.2. hierarchical. proportional ... Hosting two companies' web sites, each with two web pages. cpu cycles. company B. company A ...

company A. page 2. 0.4. 0.4. 0.2. hierarchical. proportional ... Hosting two companies' web sites, each with two web pages. cpu cycles. company B. company A ...

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CS294-1 Deeply Embedded Networks TinyOS Sept 4, 2003 PowerPoint PPT Presentation

CS294-1 Deeply Embedded Networks TinyOS Sept 4, 2003 - State transitions (but what storage and comm model? ... Example: ad hoc, multi-hop routing of photo sensor readings. 3450 B code. 226 B data ...

State transitions (but what storage and comm model? ... Example: ad hoc, multi-hop routing of photo sensor readings. 3450 B code. 226 B data ...

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Fifteen Implementation Principles PowerPoint PPT Presentation

Fifteen Implementation Principles - P5: Add Hardware to Improve Performance. Key Concept: Hardware is inherently parallel, can be very fast, and ... TCP/IP method (4-tuple) is inefficient and slow ...

P5: Add Hardware to Improve Performance. Key Concept: Hardware is inherently parallel, can be very fast, and ... TCP/IP method (4-tuple) is inefficient and slow ...

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Memory Management PowerPoint PPT Presentation

Memory Management - How much of a process's address space must be in RAM for the process to run? ... Impermanent: abandoned when no longer needed. Shadow objects ...

How much of a process's address space must be in RAM for the process to run? ... Impermanent: abandoned when no longer needed. Shadow objects ...

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ACCESS CONTROL PowerPoint PPT Presentation

ACCESS CONTROL - ACCESS CONTROL & SECURITY MODELS (REVIEW) Center of gravity of computer security Fundamental Model of Access Control Possible Access Control Mechanisms are Control ...

ACCESS CONTROL & SECURITY MODELS (REVIEW) Center of gravity of computer security Fundamental Model of Access Control Possible Access Control Mechanisms are Control ...

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Introduction to UNIX System Programming PowerPoint PPT Presentation

Introduction to UNIX System Programming - use the manual pages to get information about a specific command or ... can easily lead to a chaotic conglomeration of pipes throughout our system of processes ...

use the manual pages to get information about a specific command or ... can easily lead to a chaotic conglomeration of pipes throughout our system of processes ...

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SPC PortLevel Processing: the MSR Kernel PowerPoint PPT Presentation

SPC PortLevel Processing: the MSR Kernel - Line Cards (link interfaces) Port Processors: SPC and/or FPX. 4. Washington ... Free Descriptor chains, with each chain representing buffers available for Rx ...

Line Cards (link interfaces) Port Processors: SPC and/or FPX. 4. Washington ... Free Descriptor chains, with each chain representing buffers available for Rx ...

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Introduction to Using the Origin2000 hecate things to know''' PowerPoint PPT Presentation

Introduction to Using the Origin2000 hecate things to know''' - Always use 'secure shell' ssh to connect (works like rlogin ... NAG. link with '-lnag' use 'naghelp' on hecate or at PPPL. SCSL (SGI/Cray Scientific Library) ...

Always use 'secure shell' ssh to connect (works like rlogin ... NAG. link with '-lnag' use 'naghelp' on hecate or at PPPL. SCSL (SGI/Cray Scientific Library) ...

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OptIPuter System Software PowerPoint PPT Presentation

OptIPuter System Software - Promise of Simpler Application Models, New Capabilities ... New Glimmerglass Reflexion switch provides 1:4 photonic multicasting- ie take an ...

Promise of Simpler Application Models, New Capabilities ... New Glimmerglass Reflexion switch provides 1:4 photonic multicasting- ie take an ...

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The Evolution of Libnet PowerPoint PPT Presentation

The Evolution of Libnet - Libnet is released under a BSD license meaning it is basically free to use ... Returns the last error message generated by libnet. SUCCESS ...

Libnet is released under a BSD license meaning it is basically free to use ... Returns the last error message generated by libnet. SUCCESS ...

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UNet: A UserLevel Network Interface PowerPoint PPT Presentation

UNet: A UserLevel Network Interface - video playback ... free queue. descriptor for free buffer of storing arriving messages ... to virtualize the host-i960 interface such that multiple user processes can ...

video playback ... free queue. descriptor for free buffer of storing arriving messages ... to virtualize the host-i960 interface such that multiple user processes can ...

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UNIX Files - UNIX Files

UNIX Files

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Mbuf PowerPoint PPT Presentations