- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - Linux
- >
- Dropped packets, Frame errors, rxbds_empty, rx_dis...
Operating System - Linux
1748170
Members
4076
Online
108758
Solutions
Forums
Categories
Company
Local Language
юдл
back
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
юдл
back
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Blogs
Information
Community
Resources
Community Language
Language
Forums
Blogs
Topic Options
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-17-2009 01:11 PM
тАО08-17-2009 01:11 PM
Dropped packets, Frame errors, rxbds_empty, rx_discards
Details
machine: HP PROLIANT SE1210
NIC: Tigon3 rev a200 PCI Express 10/100/1000Base-T Ethernet
driver: tg3
version: 3.93
firmware-version: 5722-v3.07, ASFIPMI v6.02
network config: 1000Mb/s full duplex, autoneg on
Issue
We are experiencing high TCP retransmit volume when received network traffic approaches 200Mb/s. When retransmits occur, the ifconfig drop and frame counters increment rapidly, as do the ethtool rxbds_emtpy and rx_discards statistics.
We tried enabling hardware flow control using ethtool -a option, and see pause traffic, but the drops, frames, rxbds_empty and rx_discards continue.
This condition is crippling throughput.
Any ideas?
machine: HP PROLIANT SE1210
NIC: Tigon3 rev a200 PCI Express 10/100/1000Base-T Ethernet
driver: tg3
version: 3.93
firmware-version: 5722-v3.07, ASFIPMI v6.02
network config: 1000Mb/s full duplex, autoneg on
Issue
We are experiencing high TCP retransmit volume when received network traffic approaches 200Mb/s. When retransmits occur, the ifconfig drop and frame counters increment rapidly, as do the ethtool rxbds_emtpy and rx_discards statistics.
We tried enabling hardware flow control using ethtool -a option, and see pause traffic, but the drops, frames, rxbds_empty and rx_discards continue.
This condition is crippling throughput.
Any ideas?
2 REPLIES 2
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-17-2009 11:50 PM
тАО08-17-2009 11:50 PM
Re: Dropped packets, Frame errors, rxbds_empty, rx_discards
200Mb/s is pretty high traffic.
I suggest you to check:
- how many packets/sec you have. In fact, network throughput mostly depends on packets/sec, not bytes/sec
- what is your linux version/patchlevel?
- system utilization
Vitaly
I suggest you to check:
- how many packets/sec you have. In fact, network throughput mostly depends on packets/sec, not bytes/sec
- what is your linux version/patchlevel?
- system utilization
Vitaly
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-18-2009 06:19 AM
тАО08-18-2009 06:19 AM
Re: Dropped packets, Frame errors, rxbds_empty, rx_discards
When working, the box handles 70,000 packets/s with throughput of 151 Mb/s, and exhibits errors when packets/s peaks at 118,000 and throughput is 202 Mb/s.
uname -a:
Linux hostname 2.6.18-128.1.16.el5 #1 SMP Tue Jun 30 06:07:26 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
/etc/redhat-release:
CentOS release 5.3 (Final)
uptime:
09:29:26 up 3 days, 19:21, 3 users, load average: 5.18, 5.01, 5.04
CPUs:
eight (8) Intel(R) Xeon(R) E5430 @ 2.66GHz
MemTotal:
16,443,824 kB
Seems like a capable machine. But the NIC is a choke point.
Do you know what rxbds_empty is? Looking at the source code, it appears to be a circular list of block descriptors. Could this be a resource depletion issue?
uname -a:
Linux hostname 2.6.18-128.1.16.el5 #1 SMP Tue Jun 30 06:07:26 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
/etc/redhat-release:
CentOS release 5.3 (Final)
uptime:
09:29:26 up 3 days, 19:21, 3 users, load average: 5.18, 5.01, 5.04
CPUs:
eight (8) Intel(R) Xeon(R) E5430 @ 2.66GHz
MemTotal:
16,443,824 kB
Seems like a capable machine. But the NIC is a choke point.
Do you know what rxbds_empty is? Looking at the source code, it appears to be a circular list of block descriptors. Could this be a resource depletion issue?
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
News and Events
Support
© Copyright 2024 Hewlett Packard Enterprise Development LP