Visa communication time via ethernet - very slow?

Hello Everyone,
I am working with an Anritsu MS2722C Spectrum Analyzer and attempting to recieve as fast a communication time as possible. So far, the visa function calls I make ( viPrintf / viBufWrite viReadStr / viBufRead ) seem to be taking roughly 100ms each, much too slow for the project I'm working on.
Does anyone have ideas as to how I can speed up the communcation time to the device in software? It seems like maybe I am missing something in maximizing the efficiency of the VISA library, as it seems to me that the communication time should be much faster than this.
I'm sorry if this question is in the wrong spot or has been already answered, but I didn't see much discussion about library efficiency anywhere.
Thanks,

Hi Ever Song,
Thanks for the response! The real problem I'm having isn't so much with the data transfer rate though, the speed at which the actual data transfer happens is fine (if I were to say, transfer a large file, the operation completes in say 130ms .. only 30ms longer than making a simple call with very little data transfer). So while the jumbo frames are a decent idea, that's more of a low-level speedup for data transfer rates, and I'm not sure it will really help me
I'm speaking in terms of VISA library overhead, or some sort of overhead from establishing a connection, as sending even the simplest command is taking around 100ms. (the call itself blocks for this time). If anyone has had any experience with using the visa libraries (particularly with a spectrum analyzer) I'd really like to hear about what kind of communication times you were able to achieve.
Thanks,
~Chris

Similar Messages

Time machine is very slow....

After upgrading to ML, time machine seems very slow. I usually make back up once a week. First back up took nearly a day, but completed successfully.

After upgrading to ML, time machine seems very slow. I usually make back up once a week. First back up took nearly a day, but completed successfully.

Suddenly, time machine is very slow. Used to take up a minute and now more than half an hour. Does anybody know how this can happen? Indexing the back-up disk is off, but Timde Machine keeps on indexing!

Suddenly, time machine is very slow. Used to take up a minute and now more than half an hour. Does anybody know how this can happen? Indexing the back-up disk is off, but Timde Machine keeps on indexing!

same issue here...

Time capsule is very slow on wired Ethernet - tested from multiple sources

I purchased a 2 TB Time Capsule today. I want to use it for automatic backups of my Macbook, and I also want to use it to store files from my Windows PC's.
My TC is connected to my network using wred Ethernet only (Wireless is disabled in the TC)
My problem is that transferring files to the TC is incredibly slow. I have been doing some research and found lots of articles that talk about wireless interference and various problems with interoperability between WiFi flavors. None of these would seen to apply as I am using only wired Ethernet to transfer my files.
I also found a couple of discussions that describe how to make a change to the Mac's TCP/IP configuration to avoid a strange network condition slowing things down. This solution doesn't seem applicable as I am seeing the performance problem regardless of where I copy files FROM (I have a mixed environment with Windows and Linux and Mac systems)
Also, I am aware that the inital backup with Time Machine will be slow but I don't think that's relevant to my situation.
My TC is configured for file sharing so I can read and write files from my various Windows systems on the network. When I copy a set of large files to the TC, I see a typical transfer rate of 5 - 6 MB / Second. To me, this is completely abnormal and here is why: When I copy the same files, from the same Windows system, to a server on my network I get about 60 MB / second or about 10 times the transfer rates.
The TC is running firmware 7.4.2.
What gives?
Message was edited by: 92656iPhone

I also had the same issue. My Time Capsule was connect to the Linksys router WAG325N. I had a wireless network broadcasted from the Linksys and a different one from the Time Capsule. When connected to the TIme Capsule wireless network i pinked the Linksys router and got 10% to 30% pack loss. When i pinked the Time Capsule i got 0% loss. I used the AirPort Utility and changed the "Internet" "Ethernet WAN Port" from automatic to "10 Mbps/Full Duplex" and this seem to fix the slow internet.
I guess the Linksys and Time Capsule as issues with port speed negotiation.

TC 1st backup via Ethernet very very slow - HELP

Hi,
I am trying to do my first back up via Ethernet connection but it is so slow that there must be something wrong. In the last 16 hours TC advanced 1,77GB of 67 GB - so estimated finish would be in 3 weeks.....
Please, any idea what I am doing wrong?

I'm pretty sure you will have to do this via ethernet.
Try going to the Finger, selecting Go>Connect To Server then select the Browse button. After you have done this, you should see the disk available as a network server. I hope this helps, but I'm running Leopard.

AFP Directory Listings via VPN very slow in Finder

Hello all!
I recently exchanged my existing Apple iMac Core2Duo (with Mac OS X 10.6.8) to a brand new iMac 27" i7 (10.9.4). Besinde to this new iMac I´m using a MacBook Pro 15" (with 10.6.8). WLAN/Airport is turned off; only Ethernet / LAN is used.
My problem right now is: since the upgrade to OS X Mavericks we are experiencing server problems, browsing AFP shares on remote servers (VPN). The Directory Listing is very slow an can take up to 30 minutes for large listings. I can't browse network folders with Finder because it's too slow. It takes forever just list all the subfolders. If I try to transfer or open a file, everything is fine and I can do it at the right speed.
Here's the setup
2 networks are connected thanks to a VPN connection.
All clients, in all connected networks can communicate to a common fileserver (MacPro with OS X 10.6.8 SnowLeopard Server) in Network A
Firewall is not an issue between those networks
The clients authenticate via OpenDirectory and Kerberos to the fileserver
So the problems occur if i want to connect a client on network B to the server on network A. Connection, authentication, ... all good. Even the performance over the VPN, to tranfer files is OK. But browsing subfolders is catastrophic. I used AFP , results are the same. I also made tests on older clients, to see if the fileserver is the problem. 10.6 and 10.8 clients can browse normally, speed is OK.
So my question: What can I do to accelerate the browsing of my AFP/SMB shares for all my Mavericks clients? What can I do to speed up the Directory Listing? And yes: i know about solutions like PathFinder, TotalFinder, .... but i'm more interested in a native solution to this problem.
Thx!!
OS X Mavericks (10.9.4), 10.6.8 Server

This has been a major issue in Mavericks all along. SMB has been a total disaster for anyone who works with MACs on a corporate network, causing admins night terrors, anxiety disorders, and general sadness. 10.9.4 + some server side fixes (smbcreditsmax and smbcreditsmin) fixed many of the issues, but the slow finder listings over VPN connections is still unusable. the only workarounds i know of are:
- switch to windows
- downgrade to mountian lion
- use FTP or webDav protocols
- use a 3rd party finder replacement: mucommander (clunky additional app but works!)
I will be testing Yosemite beta this weekend, i have heard reports that some of this nonsense is fixed.

Time Capsule became very slow

Hello all,
Yesterday I decided to connect my time capsule (1tb) to my mac mini with an ethernet cable (cat6) instead of the wireless setup I have been using for quite some time. At first the transfer rate was high, as I expected, but then after an hour or two it became immensly slow. A file from 50mb would take over 30 minits to transfer from my timecapsule to the mac mini and vice versa.
I changed the timecapsule setup throught the airport configuration tool, but the only thing increasing the speed was to change the setting for the ethernet - wan - port to 1000 mb/s, however this ended in high transfer rates but I could no longer connect to the internet.
I started looking for solutions on the internet but all solutions did not solve my problem.
I changed the ACK from 3 to 0 without any results...
So that is why I posted this topic and I am desperately looking for help...

Are you reusing an old backup? That can be very slow.. you need to create a new backup for the new computer.
You need to figure out is this a general wireless issue.. or is it the TC just getting old.. a Gen2 is well past useby date.
Look at A1 here. http://pondini.org/TM/Troubleshooting.html
Or is that what you have there. Doesn't look like what I see in the Log.
Test by copying a single large file to the TC.. say 1GB and checking the speed. If that is fast. then you need to figure the old backup is not working well.
Also test with an ethernet connection so you can determine the issue is wireless or not.. when you test with ethernet shut off the wireless so it is not going to have two paths to the same destination.

Time capsule ethernet transfer slow

I have a new 3 tb time capsule. I have used it to back up my mac before doing a fresh install. I also transfered my large 250gb iphoto library via ethernet cable to the time capsule in a seperate folder. When I completed the new install of mountain lion I used migration assistant to transfer the base data and then individually transfered documents and sub folders with minial fuss. 50 gb taking 1hr. I am now trying to transfer the iphoto library and it is giving me a 7-22 days transfer time. This makes no sense, please advise.

Time estimates are displayed using the current connection rate.
It is normal for the backup to start quite slowly as it tries to analyze all of the data to be backed up or transferred, and then speed up significantly for the bulk of the transfer and then slow down a bit toward the end of the backup.

Initializing laptop HD via Firewire very slow

Hi all,
I'm trying to initialize a new 80Gb laptop HD before installing a new copy of Panther on it for installation into a Mac mini. I'm doing the initialization, via a firewire cable and Macally enclosure, to a G4 MDD running Panther 10.3.9 using DiskUtility.
The initialization is very slow, top showing DiskUtility using around 1% of the CPU most of the time. The initialization has been running for 24+ hours and it's still going. The progress bar on DiskUtility has barely moved since it started.
Is the slowness a sign that my firewire port on the G4 motherboard is having a problem?
And can I safely just quit DiskUtility and put the HD back in the mini and do the initialization and installation via the Panther install discs directly on the Mac mini? Or am I stuck with waiting until it ends, since otherwise I'll screw up the partition map on the HD or something?
Any ideas would be greatly appreciated!
Ed

Hi Ed. Be sure in your disk utility the option "safety(s)" is/are not checked. This way the app writes zero
on all your hd blocks and, more, if 7 pass or 35 pass is checked the time will be veeeery long to finish.
Just initialize your disk the standard way, without any other option. You can also check your device integrity before init with the surface scan, this will take up more time but will ensure your device isn't defective. I've formatted many hd through FW cable to external enclosure, succesfully.
regards
Rob

Backing up macbook pro to time capsule for first time via ethernet

I set up a new 2T Time Capsule / Airport, let it run overnight, only about half way backed up. I deleted first backup file, and want to do the backup via ethernet. How do I do this?

....and want to do the backup via ethernet. How do I do this?
This will depend on how you have the Time Capsule connected to your network.
If you have it connected from your modem or modem/router using an Ethernet cable at the present time, you are already set. Just connect another spare Ethernet cable from one of the LAN <-> ports on the Time Capsule to your Mac....and be sure to turn off the wireless on the Mac before you start the backup.
Normally, about 25-30 GB of data will transfer per hour this way, so if your Mac has say, 60 GB of data loaded, the backup should take approximately 2-3 hours. Once the backup is complete, disconnect the Ethernet cable and turn the wireless back on at the Mac.
However, if you have the TIme Capsule configured to connect to your network using wireless only, then the Ethernet ports are not enabled on the Time Capsule in this type of setup. It is not possible to backup using an Ethernet connection unless you are willing to reconfigure the Time Capsule for the backup...and then reconfigure it again to get it back to its current setup.

Time Machine Running VERY SLOW

I am using a 2 TB G-Drive for Time Machine.
I've been getting "disk full" messages for some time and the drive is is currently showing 47 GB free.
Today (at least that's the first I noticed it,) Time Machine is running VERY SLOW.
Looking at the drive the light with flash bright about once every 3 or 4 seconds.
Looking at the Time Machine status, it has been trying to backup 30 GB for several hours and has only backed up less than 10 GB.
My question is could this be caused by the drive being full or could it be the drive is about to go out.
In either case, if I get a new (larger) drive, will I be able to retrieve older files from this drive if necessary?
Thanks in advance.
Chuck

I finally re-booted at about 4:20 PM which seemed to clear up the issue, so this may be moot.
Here is the log:
12/19/12 2:40:32.786 PM WindowServer[78]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04273580 device: 0x100d29320 isBackBuffered: 1 numComp: 3 numDisp: 3
12/19/12 2:40:32.800 PM WindowServer[78]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x1b563241 device: 0x100d29d30 isBackBuffered: 1 numComp: 3 numDisp: 3
12/19/12 2:40:41.887 PM lsboxd[626]: @AE relay 4755524c:4755524c
12/19/12 2:43:24.256 PM Bento[93709]: Warning: Already had a model for IP9_RKAlbum with uuid: recoveredPhotosAlbum in cache.
12/19/12 2:45:15.805 PM mDNSResponder[46]: Double NAT (external NAT gateway address 192.168.1.88 is also a private RFC 1918 address)
12/19/12 2:54:14.856 PM com.apple.backupd[92721]: Copied 9.45 GB of 27.59 GB, 2762 of 2762 items
12/19/12 3:00:15.823 PM mDNSResponder[46]: Double NAT (external NAT gateway address 192.168.1.88 is also a private RFC 1918 address)
12/19/12 3:07:23.000 PM kernel[0]: (default pager): [KERNEL]: ps_select_segment - send HI_WAT_ALERT
12/19/12 3:07:23.657 PM com.apple.SecurityServer[15]: Killing auth hosts
12/19/12 3:07:23.657 PM com.apple.SecurityServer[15]: Session 100639 destroyed
12/19/12 3:07:23.000 PM kernel[0]: macx_swapon SUCCESS
12/19/12 3:07:23.718 PM com.apple.SecurityServer[15]: Session 100649 created
12/19/12 3:07:25.704 PM Notes[93810]: [IMAP] Expected untagged initial response from mail.brennaman-photo.com
12/19/12 3:07:25.795 PM Notes[93810]: [IMAP] Expected untagged initial response from pop.att.yahoo.com
12/19/12 3:07:25.843 PM Notes[93810]: [IMAP] Expected untagged initial response from pop.att.yahoo.com
12/19/12 3:07:41.000 PM kernel[0]: Sandbox: sandboxd(93819) deny mach-lookup com.apple.coresymbolicationd
12/19/12 3:07:47.266 PM sandboxd[93819]: ([93817]) mdworker(93817) deny file-write-owner /Users/Chuck/Library/Containers/com.apple.Notes/Data/Library/Notes/NotesV1.stor edata-wal (import fstype:hfs fsflag:480D000 flags:240000005F diag:0 uti:com.apple.notes.externalrecord plugin:/Library/Spotlight/Notes.mdimporter - find suspect file using: sudo mdutil -t 2479915)
12/19/12 3:07:47.670 PM sandboxd[93819]: ([93817]) mdworker(93817) deny file-write-owner /Users/Chuck/Library/Containers/com.apple.Notes/Data/Library/Notes/NotesV1.stor edata-shm (import fstype:hfs fsflag:480D000 flags:240000005F diag:0 uti:com.apple.notes.externalrecord plugin:/Library/Spotlight/Notes.mdimporter - find suspect file using: sudo mdutil -t 2479915)
12/19/12 3:08:26.326 PM Notes[93810]: [<_LibSasl2SASLClient: 0x7f92d2e022c0> mechanism: PLAIN security layer: no] Failed a step of SASL authentication
SASL(-1): generic failure:
12/19/12 3:08:51.955 PM com.apple.ShareKitHelper[40510]: --warning: [ShareKit-XPC] Received XPC_ERROR_CONNECTION_INVALID
12/19/12 3:08:51.956 PM com.apple.ShareKitHelper[40510]: --warning: [ShareKit-XPC] connectionWithClientInterrupted
12/19/12 3:08:51.956 PM com.apple.ShareKitHelper[40510]: --warning: [ShareKit] Cancel UI for running services with Client PID: 93810
12/19/12 3:10:00.000 PM kernel[0]: Sandbox: sandboxd(93833) deny mach-lookup com.apple.coresymbolicationd
12/19/12 3:10:00.768 PM sandboxd[93833]: ([93832]) mdworker(93832) deny file-write-owner /Users/Chuck/Library/Containers/com.apple.Notes/Data/Library/Notes/NotesV1.stor edata-wal (import fstype:hfs fsflag:480D000 flags:240000005F diag:0 uti:com.apple.notes.externalrecord plugin:/Library/Spotlight/Notes.mdimporter - find suspect file using: sudo mdutil -t 2480117)
12/19/12 3:10:01.376 PM sandboxd[93833]: ([93832]) mdworker(93832) deny file-write-owner /Users/Chuck/Library/Containers/com.apple.Notes/Data/Library/Notes/NotesV1.stor edata-shm (import fstype:hfs fsflag:480D000 flags:240000005F diag:0 uti:com.apple.notes.externalrecord plugin:/Library/Spotlight/Notes.mdimporter - find suspect file using: sudo mdutil -t 2480117)
12/19/12 3:10:20.970 PM mdworker[93701]: CFPropertyListCreateFromXMLData(): Old-style plist parser: missing semicolon in dictionary on line 1. Parsing will be abandoned. Break on _CFPropertyListMissingSemicolon to debug.
12/19/12 3:11:23.000 PM kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=93847[GoogleSoftwareUp] clearing CS_VALID
12/19/12 3:15:15.841 PM mDNSResponder[46]: Double NAT (external NAT gateway address 192.168.1.88 is also a private RFC 1918 address)
12/19/12 3:30:15.858 PM mDNSResponder[46]: Double NAT (external NAT gateway address 192.168.1.88 is also a private RFC 1918 address)
12/19/12 3:43:48.462 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6476
12/19/12 3:43:48.462 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6475
12/19/12 3:43:48.462 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6474
12/19/12 3:43:48.462 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6473
12/19/12 3:45:15.876 PM mDNSResponder[46]: Double NAT (external NAT gateway address 192.168.1.88 is also a private RFC 1918 address)
12/19/12 3:48:34.247 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6506
12/19/12 3:48:48.000 PM kernel[0]: firefox (map: 0xffffff8035a0d4d8) triggered DYLD shared region unnest for map: 0xffffff8035a0d4d8, region 0x7fff90a00000->0x7fff90c00000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
12/19/12 3:48:55.833 PM lsboxd[626]: @AE relay 4755524c:4755524c
12/19/12 3:53:18.000 PM kernel[0]: firefox (map: 0xffffff8035a0d4d8) triggered DYLD shared region unnest for map: 0xffffff8035a0d4d8, region 0x7fff90a00000->0x7fff90c00000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
12/19/12 3:53:26.182 PM System Preferences[94039]: Cannot setMachineString without first being authenticated
12/19/12 3:53:26.237 PM System Preferences[94039]: *** WARNING: -[NSImage compositeToPoint:operation:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.
12/19/12 3:53:26.238 PM System Preferences[94039]: *** WARNING: -[NSImage compositeToPoint:fromRect:operation:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.
12/19/12 3:53:26.256 PM System Preferences[94039]: *** WARNING: -[NSImage compositeToPoint:operation:fraction:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.
12/19/12 3:53:26.257 PM System Preferences[94039]: *** WARNING: -[NSImage compositeToPoint:fromRect:operation:fraction:] is deprecated in MacOSX 10.8 and later. Please use -[NSImage drawAtPoint:fromRect:operation:fraction:] instead.
12/19/12 3:53:39.518 PM System Preferences[94039]: Could not connect the action warnCullingPressed: to target of class TMOptionsSheetController
12/19/12 3:53:39.519 PM System Preferences[94039]: Could not connect the action backUpOnBatteryPowerPressed: to target of class TMOptionsSheetController
12/19/12 3:54:17.868 PM com.apple.backupd[92721]: Copied 11.33 GB of 27.59 GB, 2762 of 2762 items
12/19/12 3:55:33.000 PM kernel[0]: VirtualBoxVM (map: 0xffffff8032d07960) triggered DYLD shared region unnest for map: 0xffffff8032d07960, region 0x7fff90a00000->0x7fff90c00000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
12/19/12 3:56:10.000 PM kernel[0]: aio_queue_async_request(): too many in flight for proc: 16.
12/19/12 3:56:15.000 PM kernel[0]: aio_queue_async_request(): too many in flight for proc: 16.
12/19/12 3:56:23.831 PM VirtualBoxVM[94051]: -_continuousScroll is deprecated for NSScrollWheel. Please use -hasPreciseScrollingDeltas.
12/19/12 3:56:23.832 PM VirtualBoxVM[94051]: -deviceDeltaX is deprecated for NSScrollWheel. Please use -scrollingDeltaX.
12/19/12 3:56:23.832 PM VirtualBoxVM[94051]: -deviceDeltaY is deprecated for NSScrollWheel. Please use -scrollingDeltaY.
12/19/12 3:57:50.000 PM kernel[0]: aio_queue_async_request(): too many in flight for proc: 16.
12/19/12 4:00:15.894 PM mDNSResponder[46]: Double NAT (external NAT gateway address 192.168.1.88 is also a private RFC 1918 address)
12/19/12 4:01:04.000 PM kernel[0]: Sandbox: sandboxd(94070) deny mach-lookup com.apple.coresymbolicationd
12/19/12 4:01:09.123 PM sandboxd[94070]: ([94063]) mdworker(94063) deny file-read-xattr /Users/Chuck/Library/Caches/Firefox/Profiles/ac442cpf.default/safebrowsing-to_d elete (pre-plugin fstype:hfs fsflag:480D000 flags:250000004C diag:0 uti:public.folder plugin:internalPlainTextImporter - find suspect file using: sudo mdutil -t 2481004)
12/19/12 4:10:06.000 PM kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=94128[GoogleSoftwareUp] clearing CS_VALID
12/19/12 4:10:39.938 PM com.apple.usbmuxd[67841]: _handle_timer heartbeat detected detach for device 0x78-10.0.0.15:0!
12/19/12 4:15:15.911 PM mDNSResponder[46]: Double NAT (external NAT gateway address 192.168.1.88 is also a private RFC 1918 address)
12/19/12 4:18:52.000 PM kernel[0]: firefox (map: 0xffffff8032d060e8) triggered DYLD shared region unnest for map: 0xffffff8032d060e8, region 0x7fff90a00000->0x7fff90c00000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
12/19/12 4:18:54.297 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6463
12/19/12 4:18:54.297 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6306
12/19/12 4:18:54.297 PM WindowServer[78]: CGXDeferSurfaces : Invalid source window 6191
12/19/12 4:19:01.256 PM com.apple.backupd[92721]: Copied 2762 files (12.21 GB) from volume Macintosh HD.
12/19/12 4:19:12.920 PM com.apple.launchd.peruser.501[265]: (com.apple.PackageKit.InstallStatus) Throttling respawn: Will start in 7 seconds
12/19/12 4:19:14.886 PM WindowServer[78]: dict count after removing entry for window 0x33 is 0
12/19/12 4:19:14.968 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:14.968 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:14.969 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:14.969 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:14.969 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:14.974 PM com.apple.launchd.peruser.501[265]: ([0x0-0x5987982].com.apple.MassStorageCamera[75489]) Exited: Killed: 9
12/19/12 4:19:14.990 PM mds[45]: (Error) Server: ==== XPC handleXPCMessage XPC_ERROR_CONNECTION_INVALID
12/19/12 4:19:15.082 PM coreservicesd[79]: SendFlattenedData, got error #268435459 (ipc/send) invalid destination port from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=159
12/19/12 4:19:15.085 PM coreservicesd[79]: SendFlattenedData, got error #268435459 (ipc/send) invalid destination port from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=174
12/19/12 4:19:15.086 PM coreservicesd[79]: SendFlattenedData, got error #268435459 (ipc/send) invalid destination port from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=174
12/19/12 4:19:15.087 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.087 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.088 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.088 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.088 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.089 PM coreservicesd[79]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=113
12/19/12 4:19:15.089 PM coreservicesd[79]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=44890
12/19/12 4:19:15.122 PM coreservicesd[79]: SendFlattenedData, got error #268435460 (ipc/send) timed out from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=61322
12/19/12 4:19:15.123 PM com.apple.launchd[1]: (com.apple.ShareKitHelper[40510]) Exited: Killed: 9
12/19/12 4:19:15.343 PM coreservicesd[79]: SendFlattenedData, got error #268435459 (ipc/send) invalid destination port from ::mach_msg(), sending notification kLSNotifyApplicationDeath to notificationID=140
12/19/12 4:19:15.344 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.344 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.344 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.344 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.344 PM WindowServer[78]: CGXGetConnectionProperty: Invalid connection 36611
12/19/12 4:19:15.591 PM loginwindow[49]: sendQuitEventToApp (Image Capture Extension): AESendMessage returned error -1712
12/19/12 4:19:15.592 PM com.apple.launchd.peruser.501[265]: ([0x0-0x27027].com.apple.AppleSpell[630]) Exited: Terminated: 15
12/19/12 4:19:15.593 PM com.apple.launchd.peruser.501[265]: ([0x0-0xc5d55c9].com.apple.iTunesHelper[67878]) Exited with code: 1
12/19/12 4:19:15.593 PM com.apple.launchd.peruser.501[265]: (com.apple.mdworker.shared.03000000-0000-0000-0000-000000000000[94152]) Exited: Killed: 9
12/19/12 4:19:15.702 PM com.apple.launchd.peruser.501[265]: ([0x0-0x1a01a].com.apple.ImageCaptureExtension2[365]) Exited: Terminated: 15
12/19/12 4:19:15.807 PM com.apple.launchd.peruser.501[265]: (com.apple.storeagent[48126]) Exited: Killed: 9
12/19/12 4:19:17.162 PM loginwindow[49]: DEAD_PROCESS: 49 console
12/19/12 4:19:17.499 PM com.apple.backupd[92721]: Stopping backup to allow backup destination disk to be unmounted or ejected.
12/19/12 4:20:21.000 PM bootlog[0]: BOOT_TIME 1355955621 0

Time Machine remains very slow despite October 5th update - Mac OS X 10.7.5 (11G63)

I just updated my BMP with OS X Lion update (10.7.5). The update says that it fixes the Time Machine speed (very very slow). Well, despite this patch I still have 18.6 MB backuped in 5 minutes, among 4.16 GB... Still have to wait for.
Who is facing the same issue ?
Regards,
F

Finally, the backup accelerated and came back to a more usual speed.

Ipad and exchange 2003 downloads all email every time and is very slow. We get "no sender" dated 1/1/70 during process.

Ipad has become very slow to sync with exchange 2003. suspect IOS releases have IPad beyond older exchange software but need to understand why sync email is so slow and seems to re-download entire mailbox every time sync runs. Android phones do not have the issue, only ipad. ipad are up do date, mix of 1,2 and new

i have two iPads running different mail, one is my work gmail, one my personal mail. Upgraded my personal mini iPad to iOS 7.1.2 and started getting emails dated 1/1/1970, no sender no content coming I daily, the disappear after a few seconds.
on my other work iPad I haven't upgraded yet am still on iOS 7 but it stopped syncing my email on Friday. I generated a new google password and entered it and when my mail came in there were many emails dated 1/1/1970 with no sender or content, again they disappeared a few seconds later.
What's going on with the mail?

NVIDIA MCP61 Ethernet VERY SLOW

I just installed Arch on my parents computer, and the ethernet is crawling on it. Package downloads keep on timing out, even when I try to install them over the LAN with pacserve. Not sure what to do about this, I tried googling for issues with this card, but couldn't find anything. There were a few other issues that people were havine with the forcedeth driver, but I didn't find a solution.
$ lspci
00:00.0 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a1)
00:01.0 ISA bridge: NVIDIA Corporation MCP61 LPC Bridge (rev a2)
00:01.1 SMBus: NVIDIA Corporation MCP61 SMBus (rev a2)
00:01.2 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a2)
00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev a3)
00:02.1 USB controller: NVIDIA Corporation MCP61 USB 2.0 Controller (rev a3)
00:04.0 PCI bridge: NVIDIA Corporation MCP61 PCI bridge (rev a1)
00:05.0 Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2)
00:06.0 IDE interface: NVIDIA Corporation MCP61 IDE (rev a2)
00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2)
00:08.0 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2)
00:08.1 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2)
00:09.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:0b.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:0c.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2)
00:0d.0 VGA compatible controller: NVIDIA Corporation C61 [GeForce 6150SE nForce 430] (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor HyperTransport Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Miscellaneous Control
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h Processor Link Control
01:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev 80)
$ dmesg | grep -i -E 'eth'
[ 2.802357] systemd[1]: Expecting device sys-subsystem-net-devices-eth0.device...
[ 5.732272] forcedeth: Reverse Engineered nForce ethernet driver. Version 0.64.
[ 5.732512] forcedeth 0000:00:07.0: setting latency timer to 64
[ 6.254120] forcedeth 0000:00:07.0: ifname eth0, PHY OUI 0x732 @ 1, addr 00:21:97:64:87:d9
[ 6.254127] forcedeth 0000:00:07.0: highdma pwrctl mgmt lnktim msi desc-v3
[ 7.045294] systemd-udevd[160]: renamed network interface eth0 to enp0s7
[ 368.183241] forcedeth 0000:00:07.0: irq 43 for MSI/MSI-X
[ 368.183421] forcedeth 0000:00:07.0 enp0s7: MSI enabled
$ dmesg | grep -i -E 'enp'
[ 7.045294] systemd-udevd[160]: renamed network interface eth0 to enp0s7
[ 368.183421] forcedeth 0000:00:07.0 enp0s7: MSI enabled

Hi
I had a similar problem, but found the solution here:
http://www.ads-links.com/index.php/solved-cisco-linksys-e4200-slow-upload-speed.html
To manuel set the Upstream Bandwidth improved both down- and upload speed.
/jfch

Restoring Time Machine backup from Time Capsule. Very slow times solved

For me at least . .
Like many people it seems, I have had enormous problems trying to restore data using Time Machine on a Time Capsule. The data had been backed up fine. The problem was the time for restore which initially was projected at 125 hours for 235GB. Reality suggested that (after 24 hours) this estimate was going to be about right and clearly unacceptable.
I cancelled the backup and read as much as I could across bulleting boards.
The main impression was of a howl of frustration from the many people who had experienced the same problem.
The collected actions below were assembled from many threads and ultimately ended in success. I hope they help.
My initial setup was as follows:
PowerMac G5 Power PC (2005) with 8GB DDR SDRAM (1000BaseT Ethernet connector). Mac OSX 10.5.8
1TB Time Capsule on Ethernet network via a 100BaseT Hub.
I was restoring to a 1TB USB 2.0 Seagate External Desktop Drive (ST3100005EXD101-RK) attached via a USB Hub to the G5.
Having read some threads, I did all of the following:
• I brought the TC into my home office and connected it directly to the Ethernet Port of the G5 to allow the most direct connection from TC to G5
• As suggested in one thread, I replaced the Cat5 ethernet cable I was using with a Cat5e cable (Cat6 is better) to allow 1000BaseT connection to the G5.
• I turned off Time Machine backups and MobileMe Sync.
• I terminated all unnecessary applications the computer
I restarted the restore and the result was the same.
I read more widely and then did the following:
• I reformatted the Seagate target drive using GUID and Mac OS Extended (Journaled). (Applications>Utilities>Disk Utility>choose top level of target drive>Partition>choose number of partitions under Volume Scheme (1 for me)>Options (button under partition window)>GUID Partition Table>Apply and wait quite a while. I had originally had it as Apple Partition Map and GUID was recommended on one particular thread.
• I plugged the target USB drive directly into the USB port on the front of the G5 to eliminate the hub as a potential cause of the slow data transfer.
• Readings suggested that Spotlight might be trying to index one or both of the TC and the target drive. To prevent this the author suggested adding the TC unit and the target drive to the Privacy tab of Spotlight (System Preferences>Spotlight>Privacy. Click + at bottom of window and navigate to target drive/s to add). Activity monitor showed as much data being sent as received so this seemed a likely contributor to the problem. I added both drives as described.
• Somewhere it was mentioned that IPv6 might be causing the problem. I turned it off (System Settings>Network>Built-In Ethernet>Advanced (bottom right of window)>choose “Off” in Configure IPv6 drop box.
• I unplugged the Internet connection from the TC to ensure no chance of this being a factor.
• My G5 doesn’t have an Airport but if you do you should also turn this off. You want to be quite certain that there are no connections that either the computer or the airport can channel data through other than the Ethernet cable.
• I don’t have anti virus software but this should also be turned off as it seems this was slowing down data transfer for many people.
• I shut down the G5, the USB target drive and the TC and restarted them all. After start up, I once again shut down all unnecessary programmes.
I restarted the Restore and, after the customary long wait as it added up all the files to transfer, it announced that the restore would take 4 hours (as opposed to the five days it had suggested previously).
Activity Monitor now shows data transfer rates of 17mb – 18mb per second and it looks like 4 hours is going to be about right. It also shows large amounts of data being received but now with negligible amounts being sent.
I’m afraid I don’t know which of the above is the bit that solved the problem. It could be a combination but I believe that if you do all the above, your restores / backups will all go at an acceptable speed.
A last note to thank all those individuals whose wise words I scoured for these instructions. I hope their collected suggestions are of some use to others.

The migration assistant or the original backup?
I tried WiFi, Ethernet and on the second attempt with a fresh backup on a USB drive.

Visa communication time via ethernet - very slow?

Similar Messages

Maybe you are looking for