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From: Gustavo G. P. <gu...@co...> - 2008-05-15 19:06:40
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El Miércoles, 14 de Mayo de 2008, Gustavo Guillermo Perez escribió: > El Miércoles, 14 de Mayo de 2008, escribió: > > Hi Gustavo, > > > > > He probado ntfs-3g y la verdad las velocidades de lectura y escritura > > > son horribles, > > > > Could you please explain what you specifically mean in numbers and acts > > (how you measure performance)? > > Let's do the maths again, I'll gonna try the newest version, and plug again > a hard drive that have ntfs partitions and read/write files from IDE, SATA, > and USB BRIDGES. This is my benchmark: LAPTOP: GATEWAY, sata hard drive with AHCI driver on kernel 2.6.23 lspci: [see below] ram: 2GB Filse Size: ~20GB ntfs-3g version: 1.810 ddrescue /dev/sda2 /dev/null:~ 38MB/s average write speed: 30MB/s Same test with Journaled ext3 average write speed: 27MB/s Same test with XFS average write speed: 32MB/s So, my apologizes a fuse driver can write faster as a kernel driver. But the very first versions of the driver was giving me the bad impression. [Entonces, disculpas un driver hecho con fuse puede escribir tan rápido como uno del kernel, pero fueron las primeras versiones de ntfs3g las que me dieron esa impresión.] 00:00.0 Host bridge: Intel Corporation Mobile Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile Integrated Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile Integrated Graphics Controller (rev 03) 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Contoller #4 (rev 03) 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03) 00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03) 00:1c.5 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 6 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3) 00:1f.0 ISA bridge: Intel Corporation Mobile LPC Interface Controller (rev 03) 00:1f.1 IDE interface: Intel Corporation Mobile IDE Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation Mobile SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03) 02:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02) 06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E PCI Express Fast Ethernet controller (rev 01) > Best Regards, by the comment. > > > Unfortunately users report just the opposite to us and we can also only > > reproduce comparable numbers to in-kernel file systems with the still > > completely unoptimized NTFS-3G driver. > > > > If you find horrible performance then we would optimize it. But we can't > > if nobody reports it to us. Thanks a lot in advance! > > > > Some known issues: > > > > http://ntfs-3g.org/support.html#cpu100 > > http://lkml.org/lkml/2008/4/18/136 > > > > Best regards, > > Szaka > > > > -- > > NTFS-3G: http://ntfs-3g.org -- Gustavo Guillermo Pérez Compunauta uLinux www.compunauta.com |
