sata vs pata

[SammySam]

Para os experts, segue informação recolhida com testes de benching, isto apesar de a minha Mobo suportar S-ATA, eis que após testes reconheço que, apesar de em todas as intervençõs lidas neste forum, os intervenientes (de toda e pouca gama interventiva), apresentarem como que, os sata serem mais rápidos e de que, estes devem de ser colocados com o sistema operativo, pois sigam isto, porfavor:

S-ATA 150 Mbt/s Western Digital 200GB
Read 49474 Kbyte/sec
Write 53803 Kbyte/sec

P ATA 100Mbt/s Seagate
Read 56805 Kbyte/sec
Write 56964 Kbyte/sec

Cada macaco no seu galho, limitações da BIOS da mother board, certamente e confirmadas...
No entanto, esta especifica que, permite discos S-ATA, pois mas...
Não querendo desprezar os utilizadores deste forum, acho que, deve-se falar com conhecimento de causa e, calar-se quando não se sabe o que se diz.
Reconheço que, para falar sobre temperaturas nomeadamente= artic silver e afins estaremos no sitio certo, de resto, para outras questões nada melhor que lêr.
Desculpem-me os moderadores, mas, quase todas as quetões por mim colocadas, ficaram sem resposta, pois, certamente não será por mal.
Estarei sempre atento a possiveis ajudas que possa prestar, mas, deixo esta observação sem qualquer ressentimento.


Um obrigado muito especial em quem se deu ao trabalho de responder aos meus pedidos.


Obrigado.

[xXx...]

eu não percebo bem o teu problema mas tens de ter em conta varios factores

1º ocupação dos discos rigidos ( qt mais cheio mais lento )
2º fragmentação dos mesmos ( quer esta seja fisica quer seja de ficheiro)
3º drivers dos controladores actulizados ( pois por vezes existem bugs manhosos)
e um outro sem numero de factores que podem ser considerados, podendo ate alguém relacionar o desempenho com a psu ...

tenta controlar a maioria das variaveis ... e depois analisa os resulatdos

[Red_Beret]

S-ATA 150 Mbt/s Western Digital 200GB
Read 49474 Kbyte/sec
Write 53803 Kbyte/sec

P ATA 100Mbt/s Seagate
Read 56805 Kbyte/sec
Write 56964 Kbyte/sec

Isso sao discos diferentes, de marcas diferentes.

Testa com 2 discos identicos, um sata e um IDE (tipo 2 seagate de 120 gigas e com 8MB buffer) e depois posta os resultados.

[p0p4z]

O interface é k é mais rapido (e mais conviniente pelo tamanho) de resto os disco são iguais, se ele der X em ata dá os mesmos X em sata. N sei onde está a novidade disto.

[xXx...]

o q ele se esta a referir parece q seja ao facto de ter velicidades superiores com o pata qd supostamente o sata e mais rapido

usa o HD Tach para os testares ....

[SammySam]

Exactamente.

[alfatek]

Sinceramente parece-me um tópico um bocado triste pelo tom da conversa... Para além disso demonstras um ar de superioridade sem demonstrar qualquer tipo de conhecimentos superiores...

N referes que raio de testes são esses, condições, mobo, etc... portt deixo-te com resultados do storagereview

29 Western Digital Caviar WD2500JD (250 GB SATA) WD2500JD-00HBB0 60.6
38 Western Digital Caviar WD2500JB (250 GB ATA-100) WD2500JB 57.7

http://www.storagereview.com/php/benchm ... h_sort.php

teste WB99 Disk/Read Transfer Rate - Begin in MB/Sec, os resultados em end são similares.... escolhi um teste ao calhas só para mostrar que as coisas não são assim tão preto no branco, nem sobre a superioridade do sata nem da sua inferioridade...

Mesmo neste momento, com alguns discos já feitos de raiz para sata as diferenças não se fazem tanto no interface mas mais nas outras inovações, daí que a diferença seja mais a nivel de marca/modelo que propriamente sata/pata (até pq mtos fabricantes que têm versões pata e sata dos mesmos discos têm de acelerar um bocado a versão sata só para n ficarem mal vistos nos benchmarks)...

Quanto aos teus testes, podes estar a comparar alhos com bugalhos... Se quiseres também arranjas casos em que 1 disco sata é 3x + rapido que um pata e vice-versa...

[p0p4z]

Pa não esqueçer q tb os teste n são assim tão lineares.. Eu posso fazer o mesmo teste ao mesmo disco 3x seguidas apresentar me valores q podem variar em quase 10mgs.

E outra coisa é a posição de escrita q por dentro é mais rapida de q fora.. A não ser q tenhas os discos completamente vazios n podes fazer grande comparações.. No meu segate P-ATA tenho 33mg no outer edge e 50 na inner edge (é por isso q tenho a page file numa partição propria no inner edge)

[SammySam]

O que eu quis dizer foi que em todos os posts que ia lendo aqui no forum dizia-se que os sata deveriam de ser colocados com o sistema operativo, pq são mais rápidos bla bla bla...
Constatei não ser assim, no meu caso como provavelmente não o será na maioria dos casos.

Quanto á referência ao desenvolvimento triste e conhecimentos superiores" -» Não comento.

Fiz os testes eu mesmo, e constatei o que postei. (não recorri a testes efectuados por teceiros, e em condições muito especiais, os quais em nada se aplicariam ao meu caso, serviram quanto muito, para referência).
Parece que existe aqui um problema de interpretação.

Quanto à sua aplicabilidade, é a necessidade extrema de tranferência de dados, nomeadamente renderização, backups e afins.
Quanto mais rápido melhor.

PS: agora só falta expulsarem-me do forum...


Cumps.

[xXx...]

não disseste com q software fizeste os testes ...

e ja agora usa o HDTach e mete ai os resultados ....

[SammySam]

HD Tach v3.0.1.0

Western Digital S-Sata Buffer 8M
Avarage Read - 45.3 MB/s
Burst Read - 79.1 MB/s

Seagate P-ATA Buffer 2M
Avarage Read - 47.2 MB/s
Burst Speed - 90.9 MB/s

[xXx...]

agora para uma boa comparação era arranjares um pata de 8Mb wd e comparares .. ou alguém com um sistema similar ao teu ( istoé chipset) mas realmente algo esta mal ai ... reve essas configurações todas e ve o q pode estar mal pois digo-te que que os sata são mais rapidos que os pata ...

[Creative Byte]

Boas,

Compara estes testes:

Seagate------------Maxtor --------------------Western Digital
Barracuda V ------DiamondMax Plus 9------Caviar SE
(120 GB) ----------(160 GB)------------------(80Gb)
Serial ATA---------Serial ATA----------------P-ATA

1,016---------------1,499-----------------------999-----PCMark2002 Drive
27,890--------------35,355-------------------27,114---Sandra File System

Como podes ver os resultados são totalmente opostos aos teus.

Já agora quais são os teus controladores?
Qual é a percentagem de disco ocupado em cada um deles?
Tinhas o windows instalado em qual?
Anti-virus activo?

Existem vários factores que condicionam os benchmark é necessário indicares como e em que modo foram realizados os testes.

[SammySam]

Eis algo interresante:

ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. -2 standard took the CPU out of the equation, allowing for hard drives to access system memory directly.

ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. -3 didn't increase the speed performance of hard drives at all and focused instead on reliability features such as Self-Monitoring Analysis and Reporting Technology (SMART).

ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. -4 brought on Ultra-DMA Direct Memory Access is a particular method of getting information from memory, usually large blocks of memory by addressing it directly rather than through normal buffers. This is a method usually used by fast disk controllers, tape controllers, SCSI controllers and intelligent database operations. It is often 20 times faster than conventional methods of access., representing a very noticeable performance increase. It was also responsible for the ROM drive interface to ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. (known as ATAPI) which we all now take for granted. Before ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. -4 ROM drives needed a custom interface and usually necessitated a sound card to go along with it.

SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. is the next step. SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. controllers have been on the market since mid last year, available on add-on cards and companion chips on mainboards. Because they have not been discrete (integrated with the South Bridge) the data transfers have still been happening across the PCI PCI is an interconnection system between a microprocessor and attached devices in which expansion slots are spaced closely for high-speed operation. PCI is designed to be independent of microprocessor design, but synchronized with the clock speed of the microprocessor. It uses all active paths to transmit both address and data signals, sending the address on one clock cycle and data on the next. Burst data can be sent starting with an address on the first cycle and a sequence of data transmissions on a certain number of successive cycles. bus. That means that the true bandwidth that SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. can theoretically achieve has not been able to be realized.

SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. is backwards compatible with ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. . SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. brings with it some great benefits, over and above the obvious speed increase to 150MB/sec, such as:

Issue ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information.
Connector size 40 pin connector 7 pin connector
Cables 80-pin cable ribbon and normally rather ugly About double the size of a telephone cable. Better airflow and easier to work with.
Plug size 55x5mm 14x3.5mm. Leaves more room for board layout design.
Cable length An ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. cable can be no longer than 46cm SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. cables can be up to one meter long - allowing for greater flexibility in case design (ever had to change your intended placement of drives because the cable wouldn't reach?)
Signal integrity In a nutshell, the ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. standard has reached it's peak. An ATA Advanced Technology Attachment, also known as Integrated Drive Electronics (IDE), is a standard electronic interface used between a computer motherboards bus and the computers disk storage devices. With IDE, the disk drive controller is built into the logic board in the disk drive. cable can't have a gap of more than 30cm between the host controller and the first IDE An acronym for either Intelligent Drive Electronics or Integrated Drive Electronics. An IDE interface is an interface for mass storage devices, in which the controller is integrated into the disk or CD-ROM drive. interface. They're also prone to cross-talk. SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. cables have much better data integrity.
Configuration Master and slave relationship between drives can decrease drive speeds if different speed drives are used on the one channel. SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. drives can even be plugged in whilst a system is running! Any SATA Serial Advanced Technology Attachment. A electronic interface used between a computer motherboards bus and a serial computer disk storage device. Please read this article for further information. drive is detected by an operating system as Master only - thus always performing to their theoretical maximum.

[banido]

Votação:


quantos é que leram este texto até ao fim?





P.S. - Se alguem leu, que faça um resumo, de preferencia traduzido,
para ajudar os outros users. Desde já obrigado.


Sammy: não abuses do copy-paste! é fixe, e o carago, pá!!!
mas eu só de olhar, fiquei ourado!!!