Can your CPU hang?

**cooliscool** · May 1st, 2005, 06:23

Go to http://www.wmvhd.com and download the "step into liquid" 1080p demo video.. report back here with CPU usage and if the clip was choppy or not.

WMV HD 1080p is very CPU demanding (look at the system requirements at the bottom of the page

) and I'd like to see how it performs with various CPUs. I took this shot with my digicam because due to hardware rendering it couldn't be captured in a screenshot.

On mine it ran at about 40~60% CPU usage and was liquid smooth at all times. I had a few programs open aswell as can be seen in the pic.

Attached Images

Picture.jpg (116.7 KB, 142 views)

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**hushypushy** · May 1st, 2005, 06:45

i downloaded all of the WMV HD videos a longggggg time ago, they ran perfectly smooth even when i had the 2500+ at stock speeds.

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Esturk · May 1st, 2005, 06:46

Runs perfectly on my machine, CPU usage was pretty high though.

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Clipboard01.jpg (143.7 KB, 44 views)

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ChrisRay · May 1st, 2005, 08:05

This cant be compared between AMD and Intel CPUS due to Hyper Threading as the task manager doesnt properly report CPU usage

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WindHydra · May 1st, 2005, 09:51

Wow... the video is so clear

But my comp (2000+ Throughbred, integrated gf4 mx, ingetraged sound) can't handle it

100% cpu usuage...
But at least the sound is smooth

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Last edited by WindHydra; May 1st, 2005 at 10:07..

**cooliscool** · May 1st, 2005, 18:10

Quote:

Originally Posted by ChrisRay

This cant be compared between AMD and Intel CPUS due to Hyper Threading as the task manager doesnt properly report CPU usage

I figured someone would bring that up, but no. It goes over 50% at times, so the HT issue isn't there.. if it was it would never go above 50%. I think WMP 10 is a multithreaded app.

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ChankastRules · May 1st, 2005, 18:27

hehe 114 mb for 2 minutes though :S

stilz · May 1st, 2005, 18:33

At first I downloaded an 1080i one, and I ended up looking at a slideshow. Then I tried another 780i, got about 4-5 FPS. Moved it to the P4 2.8, CPU usage at ~60-65, ran just fine. The quality is amazing, thanks for the link.

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Ipswitch · May 1st, 2005, 18:49

I got the T2 vid and it used maybe 40% cpu.

ChrisRay · May 2nd, 2005, 00:32

Quote:

Originally Posted by cooliscool

I figured someone would bring that up, but no. It goes over 50% at times, so the HT issue isn't there.. if it was it would never go above 50%. I think WMP 10 is a multithreaded app.

Nope. Your wrong. It incorrectly reports CPU usage. This was covered numerous times at nvnews.

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**cooliscool** · May 2nd, 2005, 00:48

Well, that can mean anything.. lower or more.

All I know is I had room to spare.. it stayed smooth when opening/switching apps, etc.

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**hushypushy** · May 2nd, 2005, 01:30

hmm, cooliscool, maybe you havent heard...or you just arent listening to chrisray

HT processors CPU usage is not correctly reported. in fact, i've never seen a PC with HT record CPU usage of 100%, even when doing something like encoding Divx.

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**cooliscool** · May 2nd, 2005, 04:44

I realize that, but from what I heard it would only display a max of 50%, when on my CPU it gets to about 60%.. not that it matters anyway.

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**Kane** · May 2nd, 2005, 04:48

The thing is it will not display an accurate reading regardless, as Windows sees it as 2 CPUs, not as kind of the opposite of nVidia's SFR SLi mode because of hte load lalancing.

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**I-Chan** · May 2nd, 2005, 04:55

Quote:

Originally Posted by cooliscool

I realize that, but from what I heard it would only display a max of 50%, when on my CPU it gets to about 60%.. not that it matters anyway.

You said you had more programs running, so probably their threads were splitted over the "two cpus". That's surely why you could reach more than 50%.

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**hushypushy** · May 2nd, 2005, 05:28

regardless, like Kane said, it will never display the correct amount. a perfect example, like i already mentioned, is when i wasusing my friend's P4 2.6 with HT to encode a video in Xvid, it was at like 80% CPU usage. it just doesnt properly report the CPU usage.

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RF · May 2nd, 2005, 05:42

Ran fine here. 2.2ghz 200x11 AXP 2100+

Hella nice quality

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**fivefeet8** · May 2nd, 2005, 05:45

Also runs fine here. CPU usage is around the 90%, but the video was smooth.

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**Demigod** · May 2nd, 2005, 07:40

Runs fine on my PC as well. I think most modern computers can handle it fine.

Ugh, the ugly myth of incorrect CPU usage in task manager with HT. I don't know where people get this idea. HT is treated as two CPUs, not one!!! Therefore, multiple threads must be run to utilize both "CPUs". This is a plain fact of SMT and task manager is technically reporting it correctly. Note that CPU usage has absolutely nothing to do with CPU performance, it's how Windows is using/utilizing the CPU(s). Furthermore, as HT is technically capable of executing more than one thread at a time it is technically not being fully utilized when run with single threads (unlike CPUs like the Athlon which absolutely cannot run more than one thread at a time).

Quote:

Originally Posted by hushypushy

HT processors CPU usage is not correctly reported. in fact, i've never seen a PC with HT record CPU usage of 100%, even when doing something like encoding Divx.

Using a single-threaded application will never achieve 100% in HT. Try using a program that utilizes multi-threading and see the results.

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ChrisRay · May 2nd, 2005, 07:58

Demigod. It never loads fully ever on an Intel CPU. Therefore its not comparable to AMD or Intel CPUS due to the way intel CPUS load on single threaded applications. I was just pointing out this was a bad example for testing CPU load between vendors.

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May 1st, 2005, 06:45	#2
hushypushy the only one you've ever SEEN Join Date: May 2003 Location: San Francisco Posts: 21,979	i downloaded all of the WMV HD videos a longggggg time ago, they ran perfectly smooth even when i had the 2500+ at stock speeds. __________________ Dedicated to mediocrity and repetition since 1994.

May 1st, 2005, 08:05	#4
ChrisRay MMORPG Junkie Join Date: May 2004 Location: No Where! Posts: 1,146	This cant be compared between AMD and Intel CPUS due to Hyper Threading as the task manager doesnt properly report CPU usage __________________ \|CPU: Intel I7 Lynnfield @ 3.4 Ghz\|Mobo:Asus P7P55 WS Supercomputer \|Memory:8 Gigs DDR3 1333\|Video:Geforce GTX 295 Quad SLIMonitor:Samsung Syncmaster 1680x1050 3D Vision\/Olevia 27 Inch Widescreen HDTV 1920x1080 \|CPU: AMD Phenom 9600 Black Edition @ 2.5 Ghz\|Mobo:Asus M3n HT Deluxe Nforce 780A\|Memory: 4 gigs DDR2 800\| Video: Geforce GTX 280x2 SLI Nzone SLI Forum Administrator Nvidia User Group Member

May 1st, 2005, 09:51	#5
WindHydra Wind, Life, Eternity Join Date: Aug 2002 Location: El Monte Posts: 1,331	Wow... the video is so clear But my comp (2000+ Throughbred, integrated gf4 mx, ingetraged sound) can't handle it 100% cpu usuage... But at least the sound is smooth __________________ Hydrobiosis.com :bounce: We ran like the wind, under the cerulean skies... Last edited by WindHydra; May 1st, 2005 at 10:07..

May 1st, 2005, 18:27	#7
ChankastRules NextGenerationGaymulation Join Date: Sep 2004 Location: Sweden ( Proud Game Developer ) Posts: 2,775	hehe 114 mb for 2 minutes though :S

May 1st, 2005, 18:33	#8
stilz Registered User Join Date: Jul 2002 Location: Ngemu? Posts: 608	At first I downloaded an 1080i one, and I ended up looking at a slideshow. Then I tried another 780i, got about 4-5 FPS. Moved it to the P4 2.8, CPU usage at ~60-65, ran just fine. The quality is amazing, thanks for the link. __________________ To all emulator authors and contributors: without your hard work, we'd be without many hours of enjoyment and unable to relive fond memories of childhood. Thank you.

May 1st, 2005, 18:49	#9
Ipswitch /dev/user Join Date: Nov 2002 Location: Internet Posts: 407	I got the T2 vid and it used maybe 40% cpu.

May 2nd, 2005, 00:48	#11
cooliscool Global Moderator Join Date: Jul 2001 Location: SC, USA Posts: 7,231	Well, that can mean anything.. lower or more. All I know is I had room to spare.. it stayed smooth when opening/switching apps, etc. __________________

May 2nd, 2005, 01:30	#12
hushypushy the only one you've ever SEEN Join Date: May 2003 Location: San Francisco Posts: 21,979	hmm, cooliscool, maybe you havent heard...or you just arent listening to chrisray HT processors CPU usage is not correctly reported. in fact, i've never seen a PC with HT record CPU usage of 100%, even when doing something like encoding Divx. __________________ Dedicated to mediocrity and repetition since 1994.

May 2nd, 2005, 04:44	#13
cooliscool Global Moderator Join Date: Jul 2001 Location: SC, USA Posts: 7,231	I realize that, but from what I heard it would only display a max of 50%, when on my CPU it gets to about 60%.. not that it matters anyway. __________________

May 2nd, 2005, 04:48	#14
Kane 邪魔ゎ指せない Join Date: Jan 2002 Location: Gosport, England Posts: 26,303	The thing is it will not display an accurate reading regardless, as Windows sees it as 2 CPUs, not as kind of the opposite of nVidia's SFR SLi mode because of hte load lalancing. __________________ >Site Live< Pop over to my site for help with setting up PSX emulators. Help for the Final Fantasies and other RPGs avalaible Celes: (Desktop) Phenom II X4, 4Gb DDR2, GeForce 8800 GTS 320Mb, 32Gb OCZ Vertex SSD, 500Gb RAID HDD, Windows 7 Home Premium Erika: (MCPC) Revo3610, Windows 7 Home Premium Kimiko: (Craptop) HP Mini 210

May 2nd, 2005, 05:28	#16
hushypushy the only one you've ever SEEN Join Date: May 2003 Location: San Francisco Posts: 21,979	regardless, like Kane said, it will never display the correct amount. a perfect example, like i already mentioned, is when i wasusing my friend's P4 2.6 with HT to encode a video in Xvid, it was at like 80% CPU usage. it just doesnt properly report the CPU usage. __________________ Dedicated to mediocrity and repetition since 1994.

May 2nd, 2005, 05:42	#17
RF Canadian Spaceman Join Date: May 2002 Location: Canada Posts: 8,767	Ran fine here. 2.2ghz 200x11 AXP 2100+ Hella nice quality __________________ CPU: Core i7 920 \ MB: EVGA X58 \ RAM: 12GB OCZ DDR3-1600 \ GPU: ATi 5870 HDD: 2x 150GB VelociRaptor R0 / PSU: Enermax Galaxy 850w / OS: Windows 7 x64

May 2nd, 2005, 05:45	#18
fivefeet8 &-)---\|--< Join Date: Apr 2001 Location: Smallville Posts: 8,058	Also runs fine here. CPU usage is around the 90%, but the video was smooth. __________________ Play emulated games online Main Rig\|\|Intel i7 2600k @4.4 ghz\|2x4 gb DDR3 1600\|Asrock Extreme7 Gen3\|EVGA GTX670 2GB\|EVGA GTX460 PhysX\|2x Seagate 160gb SATA150 Raid0\|250 gb Samsung SATA2 HD\| OCZ 240GB SSD SATA3 \|NEC 3520 4x/8x DVD+R/RW DL burner\|Rosewill 1000 Watt\|40" Sony Bravia 1080p\|Logitec 5.1 Speaker System w/10" Sub\|Windows 7 64bit Ultimate\|\| SimplyBuyIt - Health&Nutrition

May 2nd, 2005, 07:58	#20
ChrisRay MMORPG Junkie Join Date: May 2004 Location: No Where! Posts: 1,146	Demigod. It never loads fully ever on an Intel CPU. Therefore its not comparable to AMD or Intel CPUS due to the way intel CPUS load on single threaded applications. I was just pointing out this was a bad example for testing CPU load between vendors. __________________ \|CPU: Intel I7 Lynnfield @ 3.4 Ghz\|Mobo:Asus P7P55 WS Supercomputer \|Memory:8 Gigs DDR3 1333\|Video:Geforce GTX 295 Quad SLIMonitor:Samsung Syncmaster 1680x1050 3D Vision\/Olevia 27 Inch Widescreen HDTV 1920x1080 \|CPU: AMD Phenom 9600 Black Edition @ 2.5 Ghz\|Mobo:Asus M3n HT Deluxe Nforce 780A\|Memory: 4 gigs DDR2 800\| Video: Geforce GTX 280x2 SLI Nzone SLI Forum Administrator Nvidia User Group Member