HP ENVY 15: Slow 4K read speed for Dual SSD's in RAID 0 - Needs to be addressed!

Crystalmark scores 2nd gen Envy 15:
Read/Write
SEQ 352 / 215
512K 270 / 195
4K 14.2 / 110
http://forum.notebookreview.com/showthread.php?t=427278&page=754
read write
418.2 / 213.9 seq
251.3 / 181.1 random 512k
9.8 / 53.17 random 4k
http://forum.notebookreview.com/showthread.php?t=427278&page=750
4k Read Speed MUCH SLOWER than without Raid 0 (~20-25 mb/s)

Not exactly sure, I pulled those benchmarks off of notebookreview. All I know from reading the forum is that HP Envy 15's in RAID 0 seem to be severely underperforming 4k read speeds relative to the same SSD's not in RAID 0. The 4k random read is the MOST IMPORTANT benchmark for real world performance.
Other posts in the old HP forum have cited that disabled C1E could possibly fix the 4k read issue, however the Envy 15 seems to have no way to access this option in the BIOS.

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Read speeds for my super drive ?

can anyone tell me what the read speeds are for the super drive i have in my MBP (MacBookPro3,1) C2D 2.4GHz ? specifically DVD read speeds
MATSHITA DVD-R UJ-857E:
Firmware Revision: ZA0E
Interconnect: ATAPI
Burn Support: Yes (Apple Shipping Drive)
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
DVD-Write: -R, -R DL, -RW, +R, +R DL, +RW
Write Strategies: CD-TAO, CD-SAO, DVD-DAO
Media:
Type: DVD-ROM
Blank: No
Erasable: No
Overwritable: No
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Apple reports that the 8X dual-layer DVD+R DL/DVD±RW/CD-RW SuperDrive has a maximum write speed of "8x DVD-R, DVD+R; 4x DVD-R DL (double layer), DVD+R DL (double layer), DVD-RW, DVD+RW; 24x CD-R; 10x CD-RW" and *read speed* of "8x DVD-R, DVD+R, DVD-ROM; 6x DVD-ROM (double layer DVD-9), DVD-R DL (double layer), DVD+R DL (double layer), DVD-RW, DVD+RW; 24x CD."

Sony Xperia Z2 maximum supported write/read speed for MicroSD Cards

I am looking to buy one microSD card for my Xperia Z2 Phone (6503). My question is: how fast it can write data to an SD card. For what I know, these speeds depend of SD Card controller. If I will know approximative numbers I can acquire adequate microSD card. Right now I am trying to decide between: SanDisk SDSDQX-064G-U46A Extreme Plus 64 GB - 80 MB/s SanDisk SDSDQUA-128G-G46A Ultra 128 GB - 30MB/s Writing speeds for these microSD Cards are half of indicated reed sped numbers. I like 128 GB capacity of Ultra Card, but will not hesitate to buy faster 64 GB Extreme Plus Card.
Solved!
Go to Solution.

If you use 4K recording like features, you might need to get a high speed SD!(go for the Maximum speed you can)
So I think Extreme plus would be better in this case, but if your phone is everything for you (just like me) use the maximum capacity (Which has a better speed as well, otherwise useless) I use a class 10 128 GB!
As far a I know, I think even 30 MBP will be enough for a 4K video!

Raid 0 for dual SSD's in optical drv together with RAID 5 in internal bays

Hi,
I would like to add two 100GB SSD's in the second optical drive space in RAID 0 for boot.
This can be done with a special bracket and cables to the SATA connections on the motherboard. So far so good.
Now I have 4 drive bays I could fill with 4x2TB black caviars for data and I was wondering if I can have those ran via the a RAID 5...
Anybody have advice as to wether this is possible and if the Apple RAID card is the preferred option?
Thanks!!
Thomas

Hi Thomas,
welcome on board
I think first of all your SSDs should support RAID. Secondly, what I learned reading the forum entries that Apple RAID card is far not the best possible option.
Why you would not like to use soft raid?
Message was edited by: Munas

Slow down printing speed for Smart Forms

Hi,
Is there any command (etc.) to slow down the printing speed of an Hp laserjet when printing a smart forms?
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hi,
take print out in a dot matrix printer instead of your laser printer without changing any settings.
Coz i tried this once, i was successfull. But, the printout will be very slow.
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Hi everyone,
I'm going to try using readyboost, does anyone know the read/write speed of the SD card slot?
Or do you have recommendations on using USB vs. SD card?
I guess safest is to use USB.
Thanks,
HN

if you have around 3 gig of ram, the readyboost doesn't do anything for your computer speed.
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Best practice for dual SSD RAID0 boot drive configuration

What is optimal stripe size for RAID0 OS/Boot Drives in OSX Software RAID?

You are talking about SSD too.
Usually the default or 16/32k would be fine for all those small frequent I/Os.
RAID though can affect SSD TRIM and it may depend on the SSDs. There are RAID optimized editions.
http://eshop.macsales.com/shop/internalstorage/Mercury_Extreme_SSDSandforce
http://macperformanceguide.com/SSD-RealWorld-SevereDuty.html

Slow Music CD & Film DVD read speed

Hello, I have the late 2008 mbp with a matshita superdrive.
I am finding read speeds for music and film discs to be very slow. Activity window shows it to be 2mb/s peaking at 4mb/s. Data discs read at 8mb/s. The drive is audibly spinning faster with data discs.
So importing music to itunes or converting dvds for my ipod touch is painfully slow. Cpu usage is nowhere near maximum and i have even copied the discs to test conversion speed from the harddrive.
My best guess is that apple has reduced the drive speed when playing these discs so the superdrives themselves are not so loud as to ruin the listening/watching experience.
Has anyone else experienced this? If I am correct is there a way to change the drive speeds for different media.
Thanks in advance.

I too am experiencing the same problem. I am currently in Iraq, and my wife sends me videos of my daughters that she burned to DVD. The videos are not too large, but they take FOREVER to transfer to my laptop. The drive spins up as you mentioned, then slows down and never speeds up again. It doesn't matter if the media is DVD or CD, the transfer speed is always slow. I hope that a solution presents itself soon. Obviously I do not have a local Apple store that I can take my machine into, and I am loathe to be without a computer for 6-8 weeks to send it back and forth.

Mac Pro slow write speed on Samsung SSD drive

Hi,
I am wondering why I get very slow write speeds on my Samsung SSD 840 Series 250 GB system startup drive in my Mac Pro (early 2008).
I get an average write speed of approx. 35 MB/s and not much more for top speed. I tested it by transfering a large file (8GB, .m4v) from my Mac Pro internal Raid 0 (4x 2TB Stripe Set) delivering up to 550 MB/s. The read speed of the SSD is around 270 MB/s which I consider to be OK for that I have just the 3 Gb/s internal SATA interfaces in my pretty outdated Mac Pro.
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Setup:
Samsung SSD 840 Series 250 GB (SATA 6Gb/s and 3Gb/s compatible) system startup drive. Free Space left on SSD is around 100GB of 250GB.
Mac Pro (early 2008, Model 3,1), 2 x 2.8 GHz Quad-Core Intel Xeon, 8 GB RAM, NVIDIA GeForce 8800 GT 512 MB.
OS X Mavericks 10.9.1
Samsung sais there should be 540 MB/s for Seq. Read and 250 MB/s for Seq. Write for their SSD drive.
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Really great 'The hatter' !!!
Thanks a lot for your exceptional support.
Next to my 4x discs in the 4 SATA II drive bays I have installed a additional OWC drive kit that allows me to have another 2 disks sitting in the empty bay below the CD/DVD drive and those are connected to the motherboard. So there is a lot to handle for that controller you mentionned ;-)
I will follow your guidance and boot from my 'maintenance' system on direct attached external drive, install the TRIM Enabler there as well and do the DU repair run. I always have a separate system available that gives me the chance to boot my Mac from there. And in addition I regularly use ONYX to keep my OS X clean and do the maintenance.
Anyway, you're the man of the day!
PS; I am looking forward to finally receive my new Mac Pro (late 2013) ordered on the 18th of December one of these days and then I hope that I can fly ;-)

Slow firewire 800 speeds on early 2008 macbook pro 17"

I've got an early 2008 macbook pro 17". I'm transferring files between a WD mybook studio II (2TB) configured as raid-1 to a sata dock with a seagate 1TB drive daisy-chained over firewire 800. both 1TB drives in the WD mybook and the 1TB seagate in the sata dock are 7.2k rpm. I'm running a block-level clone FROM the mybook TO the seagate using Carbon Copy Cloner which i would think would be the fastest real-world test i could do. I'm getting pegged speeds of 40MB/s. This is on par with other regular read/write speeds i've noticed in the past. this seems way off. to remove variables i unplugged my two firewire 400 drives (as i've heard that may slow things down, even though they're not doing anything during the clone) and it SLOWED DOWN the fw800 clone to 38MB/s ! plugging the two firewire 400 drives back in during the clone brought the speeds back up to 40MB/s. i don't have a unibody 2009 mbp that had the firewire issues.
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i have a similar problem.
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Hi,
please provide the reading material for the SAP scripts.
I need the the materail for creating the scripts from scratch.

hi shefali,
check all the below links u will find lot of info
SAP Scripts
http://www.sap-img.com/sapscripts.htm
http://sappoint.com/abap/
http://www.henrikfrank.dk/abapexamples/SapScript/sapscript.htm
http://help.sap.com/saphelp_crm40/helpdata/en/16/c832857cc111d686e0000086568e5f/content.htm
http://www.sap-basis-abap.com/sapabap01.htm
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http://searchsap.techtarget.com/tip/1,289483,sid21_gci943419,00.html
http://sap.ittoolbox.com/topics/t.asp?t=303&p=452&h2=452&h1=303
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http://www.virtuosollc.com/PDF/Get_Reporter.pdf
http://help.sap.com/saphelp_47x200/helpdata/en/da/6ada3889432f48e10000000a114084/frameset.htm
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http://help.sap.com/saphelp_erp2005/helpdata/en/5b/d22cee43c611d182b30000e829fbfe/frameset.htm
http://www.virtuosollc.com/PDF/Get_Reporter.pdf
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http://help.sap.com/saphelp_erp2005/helpdata/en/66/bc7d2543c211d182b30000e829fbfe/frameset.htm
http://help.sap.com/saphelp_erp2005/helpdata/en/5b/d22cee43c611d182b30000e829fbfe/frameset.htm
drawing lins, boxes and shadings
http://help.sap.com/saphelp_46c/helpdata/en/d1/802ec5454211d189710000e8322d00/frameset.htm
How to create Box in scripts
http://www.thespot4sap.com/Articles/Code_CostCentreReport.asp
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Hi guys,
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Quote from: loki5100 on 19-December-13, 01:58:06
Many thanks !
yes it's show that dragon edition is a little more faster than the i7 4700mq
me only 1250 MB/s average rate ...
wait that you computer is running several hours and try again the test ... it's here that i saw the speed go down to 750 mb/s :(
I don't have the extreme, so I have the same cpu as you. The difference could be mainboard optimizations but mostly sure the hard disks. Mines are plextor.
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"Full Screen Mode" in Adobe Reader XI for Windows 8 loads way too slow!

I recently got a new laptop with Windows 8, after having used Windows Vista for years. I installed Adobe Reader XI for my new computer. Before, I used Adobe Reader X on Vista. I used Adobe Reader "Full Screen Mode" to read the nice-looking Bible chapters I created with internet audio from Biblegateway.com. In Vista, the "Full Screen Mode" appeared quickly, before the audio fully started, so I could see the text in time for the reading.
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Has anyone else here had a similiar problem with "Full Screen Mode" loading way too slow on Windows 8? I am very disappointed! If this cannot be fixed by a user, is there a place to complain to Adobe and make a recommendation for software improvement? Thank you!

From: Test Screen Name [email protected]
Sent: Sunday, August 04, 2013 11:32 AM
To: gunner0490
Subject: I'm not able to open PDF files in Adobe Reader XI.
Re: I'm not able to open PDF files in Adobe Reader XI.
created by Test Screen Name <http://forums.adobe.com/people/TestScreenName> in Adobe Reader - View the full discussion <http://forums.adobe.com/message/5565198#5565198

[SOLVED] Slow read speeds from a DroboFS mounted in fstab via cifs

I've decided to move all my media over to my drobofs which I have and I've mounted the share on the drobo in fstab this way:
//mydrobofs/Media /media/drobofs cifs iocharset=utf8,uid=af,gid=users,guest,dir_mode=0775 0 0
The share is mounted fine at boot but my issue is now the read speeds are very slow. opening a video file with vlc takes 30 seconds or more before it starts playing. Before this was accessing the share on my drobofs via the network tab (samba shares) in Dolphin (using KDE4) and here the video files played immediately in vlc (no delay). The reason why I want to mount the share via cifs and fstab is to move music collection over to the my drobofs and since I'm using Amarok for managing my collection this is the only way to make Amarok see my Music collection on the Drobofs.
Why am I getting so slow read speeds with cifs?
Last edited by fettouhi (2012-05-07 05:54:00)

I did some more testing and seems like the problem has something to do with how many video files there are in the directory. I have some directories with several 100 video files and here I get this long delay but if I play a file that is in a directory by itself or only a few other video files are there, then the video starts immediately (almost). Is there a way to turn off this behaviour in vlc? Is it generating a playlist or what?

I need to update to the latest version of Snow Leapord-currently running v10.6. Because of where we live the slow download speed for such a large file has kept me from downloading the update. What can I do short of hooking up computer elsewhere?

I need to update to the latest version of Snow Leapord-currently running v10.6. Because of where we live the slow download speed for such a large file has kept me from downloading the update. What can I do short of hooking up computer elsewhere?

Do you ever visit a friend or realtive with a Mac who has faster internet? Maybe the local library has Macs on a fast line. If so, get a USB thumb drive and put this link on it from your computer:
http://support.apple.com/kb/DL1399
Then put this link on the drive:
http://support.apple.com/kb/DL1429
When you are at some place that has a Mac with a decent download speed. insert the thumb drive in that Mac and click on the first link ("DL1399") and direct the download to your thumb drive. Now do the same this with the second link.
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HP ENVY 15: Slow 4K read speed for Dual SSD's in RAID 0 - Needs to be addressed!

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