Horrible performance drop with mixed ports 100 & 1000 on the LAN side.

I have horrible performance with newly bought lrt224.
WAN side is a 150 Mb/s Cable connection.
LAN has 3 ports at 1Gb/s and 1 port at 100 Mb/s
Test:
On any of the lan ports at 1 Gb/s I do a test via speedtest.net and get 150 Mb/s
On the Lan port at 100 Mb/s I do a test via speedtest.net and get 10 Mb/s (same server)
Weird part, I do a LAN (1Gb/s) to LAN (100Mb/s) test I get around 99Mb/s.
Second weird part, I replace WAN side cable modem with a VDSL+ line and I get max VDSL+ performance of 75 Mb/s.
Any hints?

CABLE modem stats (bad perf):
Ping statistics for 46.228.47.115:
Packets: Sent = 83, Received = 83, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 24ms, Maximum = 106ms, Average = 32ms
Tracing route to fd-fp3.wg1.b.yahoo.com [46.228.47.114]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 20.20.20.1
2 1 ms <1 ms <1 ms 192.168.0.1
3 27 ms 17 ms 9 ms d51a50801.access.telenet.be [81.165.8.1]
4 14 ms 17 ms 11 ms dD5E0CC79.access.telenet.be [213.224.204.121]
5 * 15 ms 20 ms dD5E0FA01.access.telenet.be [213.224.250.1]
6 * * * Request timed out.
7 19 ms 14 ms 24 ms nl-ams05a-rd1-te-6-0-0.aorta.net [213.46.183.101]
8 20 ms 16 ms 13 ms pat2.ams.yahoo.com [80.249.209.163]
9 35 ms 34 ms 30 ms ae-5.pat2.iry.yahoo.com [66.196.65.154]
10 33 ms 33 ms 35 ms ae-3.msr1.ir2.yahoo.com [66.196.67.243]
11 28 ms 29 ms 34 ms et-18-10.bas2-2-prd.ir2.yahoo.com [77.238.186.47]
12 33 ms 26 ms 32 ms ir2.fp.vip.ir2.yahoo.com [46.228.47.114]
VDSL modem stats (good one):
Ping statistics for 46.228.47.114:
Packets: Sent = 68, Received = 68, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 44ms, Maximum = 110ms, Average = 46ms
Tracing route to fd-fp3.wg1.b.yahoo.com [46.228.47.115]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 20.20.20.1
2 1 ms 1 ms 1 ms 192.168.1.1
3 19 ms 19 ms 19 ms 109.131.160.1
4 21 ms 20 ms 21 ms ae-62-100.iarstr4.isp.belgacom.be [91.183.241.240]
5 * 21 ms 21 ms ae-13-1000.ibrstr3.isp.belgacom.be [91.183.246.112]
6 * * * Request timed out.
7 22 ms 21 ms 21 ms 94.102.162.147
8 * * * Request timed out.
9 * * * Request timed out.
10 25 ms 25 ms 25 ms ge-1-3-0.pat1.ams.yahoo.com [80.249.209.110]
11 74 ms 44 ms 44 ms ae-5.pat1.iry.yahoo.com [216.115.104.64]
12 43 ms 43 ms 43 ms ae-2.msr2.ir2.yahoo.com [66.196.65.159]
13 47 ms 43 ms 44 ms et-17-17.bas2-2-prd.ir2.yahoo.com [217.146.185.188]
14 43 ms 48 ms 43 ms ir1.fp.vip.ir2.yahoo.com [46.228.47.115]

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# An unexpected error has been detected by Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x1038d7d4, pid=976, tid=3664
# Java VM: Java HotSpot(TM) Client VM (1.6.0_03-b05 mixed mode, sharing)
# Problematic frame:
# C [libdbxml23.dll+0x7d7d4]
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
--------------- T H R E A D ---------------
Current thread (0x00386c00): JavaThread "main" [_thread_in_native, id=3664]
siginfo: ExceptionCode=0xc0000005, reading address 0x00000054
Registers:
EAX=0x00000000, EBX=0x103e7894, ECX=0xbcfa7f2b, EDX=0x65860002
ESP=0x003eeaf4, EBP=0x1086580c, ESI=0x10732c70, EDI=0x00000000
EIP=0x1038d7d4, EFLAGS=0x00010206
Top of Stack: (sp=0x003eeaf4)
0x003eeaf4:   bcfa7f7b 00000000 10736a18 003eec08
0x003eeb04:   10747248 104d87d8 109110b4 120ace18
0x003eeb14:   120ad55c 107c0ffc 10732c70 bcf812d7
0x003eeb24:   10732c70 003eec3c 003eec9c 00000040
0x003eeb34:   103e226c 00000000 00000000 00000000
0x003eeb44:   00000000 00000000 10880c01 00000000
0x003eeb54:   00000000 00000000 00000000 1089af01
0x003eeb64:   10880c68 10747c20 00000001 00000000
Instructions: (pc=0x1038d7d4)
0x1038d7c4:   24 40 8b e8 e8 33 23 fc ff 8b 84 24 b0 00 00 00
0x1038d7d4:   8b 4f 54 6a 00 8d 54 24 44 52 50 c7 84 24 b4 00
Stack: [0x003a0000,0x003f0000), sp=0x003eeaf4, free space=314k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [libdbxml23.dll+0x7d7d4]
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j com.sleepycat.dbxml.dbxml_javaJNI.XmlResults_next__SWIG_0(J)J+0
j com.sleepycat.dbxml.XmlResults.next()Lcom/sleepycat/dbxml/XmlValue;+4
j de.makrolog.dbxml.DBXMLDao.processQuery(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;+139
j de.dnb.edith.DBXMLIndicesTest.testIndices()V+183
v ~StubRoutines::call_stub
j sun.reflect.NativeMethodAccessorImpl.invoke0(Ljava/lang/reflect/Method;Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+0
j sun.reflect.NativeMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+87
j sun.reflect.DelegatingMethodAccessorImpl.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+6
j java.lang.reflect.Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;+161
j junit.framework.TestCase.runTest()V+108
j junit.framework.TestCase.runBare()V+7
j junit.framework.TestResult$1.protect()V+4
j junit.framework.TestResult.runProtected(Ljunit/framework/Test;Ljunit/framework/Protectable;)V+1
j junit.framework.TestResult.run(Ljunit/framework/TestCase;)V+18
j junit.framework.TestCase.run(Ljunit/framework/TestResult;)V+2
j junit.framework.TestSuite.runTest(Ljunit/framework/Test;Ljunit/framework/TestResult;)V+2
j junit.framework.TestSuite.run(Ljunit/framework/TestResult;)V+37
j org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(Lorg/eclipse/jdt/internal/junit/runner/TestExecution;)V+40
j org.eclipse.jdt.internal.junit.runner.TestExecution.run([Lorg/eclipse/jdt/internal/junit/runner/ITestReference;)V+17
j org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests([Ljava/lang/String;Ljava/lang/String;Lorg/eclipse/jdt/internal/junit/runner/TestExecution;)V+61
j org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(Lorg/eclipse/jdt/internal/junit/runner/TestExecution;)V+10
j org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run()V+70
j org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main([Ljava/lang/String;)V+14
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x02d6c800 JavaThread "ReaderThread" [_thread_in_native, id=1080]
0x029cdc00 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=3816]
0x029c9000 JavaThread "CompilerThread0" daemon [_thread_blocked, id=3152]
0x029c8000 JavaThread "Attach Listener" daemon [_thread_blocked, id=2304]
0x029c7000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=3244]
0x029c2000 JavaThread "Finalizer" daemon [_thread_blocked, id=2824]
0x029bdc00 JavaThread "Reference Handler" daemon [_thread_blocked, id=2248]
=>0x00386c00 JavaThread "main" [_thread_in_native, id=3664]
Other Threads:
0x029bc800 VMThread [id=1528]
0x029d8400 WatcherThread [id=3836]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation   total 960K, used 268K [0x228e0000, 0x229e0000, 0x22dc0000)
eden space 896K, 23% used [0x228e0000, 0x229138d0, 0x229c0000)
from space 64K, 96% used [0x229c0000, 0x229cf7a0, 0x229d0000)
to   space 64K,   0% used [0x229d0000, 0x229d0000, 0x229e0000)
tenured generation   total 4096K, used 572K [0x22dc0000, 0x231c0000, 0x268e0000)
   the space 4096K, 13% used [0x22dc0000, 0x22e4f0a8, 0x22e4f200, 0x231c0000)
compacting perm gen total 12288K, used 1342K [0x268e0000, 0x274e0000, 0x2a8e0000)
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0x77da0000 - 0x77e4a000      C:\WINDOWS\system32\ADVAPI32.dll
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0x10310000 - 0x1043f000      C:\dbxml-2.3.10\libdbxml23.dll
0x12000000 - 0x121cf000      C:\dbxml-2.3.10\xerces-c_2_7.dll
0x10460000 - 0x106a5000      C:\dbxml-2.3.10\xqilla10.dll
VM Arguments:
java_command: org.eclipse.jdt.internal.junit.runner.RemoteTestRunner -version 3 -port 2476 -testLoaderClass org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestLoader -loaderpluginname org.eclipse.jdt.junit.runtime -classNames de.dnb.edith.DBXMLIndicesTest
Launcher Type: SUN_STANDARD
Environment Variables:
JAVA_HOME=C:\Programme\Java\jdk1.6.0_03
PATH=C:\Programme\Java\jre1.6.0_03\bin\client;C:\Programme\Java\jre1.6.0_03\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Programme\Gemeinsame Dateien\GTK\2.0\bin;C:\Programme\Java\jdk1.6.0_03\bin;C:\dbxml-2.3.10;
USERNAME=wadim
OS=Windows_NT
PROCESSOR_IDENTIFIER=x86 Family 15 Model 6 Stepping 5, GenuineIntel
--------------- S Y S T E M ---------------
OS: Windows XP Build 2600 Service Pack 2
CPU:total 2 (2 cores per cpu, 1 threads per core) family 15 model 6 stepping 5, cmov, cx8, fxsr, mmx, sse, sse2, sse3
Memory: 4k page, physical 2095520k(701180k free), swap 4194303k(3631216k free)
vm_info: Java HotSpot(TM) Client VM (1.6.0_03-b05) for windows-x86, built on Sep 24 2007 22:24:33 by "java_re" with unknown MS VC++:1310

Why doesn't the SLM2024 Smart Switch 10/100/1000 support 10M?

Hi,
Since a couple of weeks I have installed 5 SLM2024 Gig Smart Switches. Now we have a new Time Attendance System that tries to communicate to the Cisco with 10M. The Cisco identifies it correctly but will not parse any info to the Device. Why is that?
Test it with a D-Link 10/100 Switch -> OK
Test with a Cisco 10/100 Switch -> OK
Test with noname 10/100/1000 Switch -> OK
Test with SLM2024 -> Failed.
I would love for someone to explain this to me. What does the Cisco do? I would gather that if a Switch is 10/100/1000 it can communicate over anyone.
Anybody?
Regards,
Richard

Hi Richard,
I would definitely expect to be receiving broadcast packets, maybe ARP packets from the time attendance advice.
Yep that is a problem.
But, why are you not receiving broadcast packets on the port that is connected to the time attendance device.hmm that my question that I am mulling in the back of my mind. Your switch port statistics showed an issue.
Packet capture
A wireshark or packet trace would be most useful , so mirroring the time attendance switch port to your PC's switch port would be useful. This would allow us to see what is coming in and out of that switch port.
Pretty easy to setup on this managed switch, see my screen capture below as an example.
Wireshark is a wonderful freeware 'sniffer' software that would allow us to see the ethernet frames coming in and out of the switch port in question.
to grab wireshark try the following URL; http://www.wireshark.org/download.html
Don't need much data just a 30 second capture and remember to undo the mirroring and save changes after the capture is taken.
MAC address Table
Be interesting to see the dynamic MAC address table to see the MAC address of the time attendance device.
Might be most intersting to add a static arp entry for the time attendance device, MAP it's MAC address to a switch port.
(This is only necessary if there isn't a dynamic ARP entry, MAC address of the time attendance device on the switch port.)
see my screen capture below, you will also note, that underneath the static address is a option to look at the dynamic address.
Switch port Status and Error log
But could be most useful to see the setting for that switch port similar to the two following screen captures.
lastly the log is informative as it might indicate what or where the error is.
David

Sudden MBP Retina 15" gaming performance drop

Hi there,
I've owned my Macbook Pro Retina since a few weeks after it came out last year, and have generally loved using it. However, I'm starting to worry now as I've noticed a severe performance drop lately in games.
I've not booted into Bootcamp (Windows 8 x64) for about two months now, but today I loaded up Skyrim, and the performance was atrocious. The game was unplayable at 1920x1200 on high, unmodded. It lags horribly - 10FPS at most. I used to be able to play this game heavily modded and achieve a high FPS. I've noticed a performance drop with other games as well, much lower than what I'd expect from this machine.
I've checked out GPU-Z and the 650M GT clocks up to 900MHz when the game launches.
I'm not sure what has caused this but I've done some reading and people have suggested an "SMC Reset" - I've tried this to no avail. If anyone could lend any advice I'd greatly appreciate it.

Well one problem is that bootcamp hasn't been updated to support Windows 8 yet, so there may be driver issues there. I have experienced this problems and so have others in this forum and an smc reset has fixed the majority. Are you sure you are performing the SMC reset correctly? Also, try a PRAM reset and see if that helps resolve the issue.

Node redirects to self with incorrect port

Hi!
Here is a RAC (11.2.0), with 3 SCAN IP addresses (A1, A2, A3) and nodes N1 and N2. Node n1 is mapped to A1 and A2, while N2 to A3.
When connecting to the SCAN hostname (or any of the addresses directly), most of the times everything is ok. But sometimes as I see in sniffing, I get a TNS Redirect to a new HOST+PORT.
Now, what is interesting, that from N1 the redirection is to N1:XYZ (yes, the same machine), and from N2 to N2:DEF. After listing open ports, I can see that
N1:DEF is bound by the process ora_d000 on TCP, while N2:XYZ is also bound by the process on the other machine.
That is, in the redirect I somehow get redirected to the wrong machine, since the IP and the PORT of the instances are mixed. Some questions:
1) Is it normal to redirect to a port non-1521? DEF and XYZ are high ports, seemingly random.
2) What controls if I get redirected or not? Is this connection load balancing?
3) What could cause the symptom? What config options should I look into and where to resolve the correct machines/ports on redirect?
Pretty new to Oracle, so please don't assume much knowledge. Thanks!
Ron

After taking tcpdump both on client and the nodes, I discovered the following:
When connecting to N1, the redirect message it sends, captured:
- On the server-side: HOST:PORT=N2:<port for N2>
- On the client-side: HOST:PORT=<ip-address of N1>:<port of N2>
Maybe there is an application-level firewall sitting between the node and the client, which mis-translates the message?

Big performance drop migrating to Kodo 4.1 (Why would Kodo refuse to batch inserts in certain tables)

Hello,
While migrating from Kodo 3.4 to Kodo 4.1, I noticed significant drop in
insert performance. I traced it down to some strange batching behavior.
While most of the PCs were committed with batched inserts one particular
class refused to batch and would insert row by row resulting in 10 times
performance drop.
There is nothing special about the class. Its hierarchy is mapped on base
its table except for one of the lowest members which is mapped vertically.
Thank you very much
Alex Roytman
Peace Technology, Inc.
301-206-9696x103

See my post "My experience migrating Kodo 3.4 to 4.1"
"Stefan Hansel" <[email protected]> wrote in message
news:[email protected]..
Abe White wrote:
This case is being handled elsewhere, but for the benefit of others:
Kodo 4 works around a date/timestamp batching bug in some Oracle drivers
by not batching rows with date/timestamp columns.-------------
Abe could you get a bit deeper into it ?
It sounds like kodo 3 was batching that rows and had no problem with it ?
We only ship with the suggested oracle driver 10.2.0.1.0.
50% of our customers use oracle, so it would be a pity if performance
drops.
Alex ... it sounds like you successfully migrated to kodo4.
Could you give a short summery on how 'difficult' it was in the end ?
From the docs it sounds very easy (except the sentence 'Many
confniguration
properties and defaults have changed.') but from the newsgroups it sounds
as if
you'd struggle a bit.
I'm about to schedule our migration for the first quarter of 2007 and any
hint
helping use to estimate the time will help us.
If you compare with migration from kodo 2 to 3 ... is it easier or worse ?

Horrible performance drop with mixed ports 100 & 1000 on the LAN side.

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