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Poor write performance on MacOS X 10.4.8 Intel
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Atmosfear
Joined: Mon Jan 29, 2007 18:02
Posts: 3
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 Poor write performance on MacOS X 10.4.8 Intel Hi,
I'm trying out NTFS-3g-BETA 20070118 with MacFUSE-Core 0.19 on an Intel Mac and am seeing very poor write performance:
Copying 32GB of HD-Video-Material from an 200GB eSATA-Drive to an internal 1TB logical Hardware RAID5 volume takes over 10 hours, which estimates to about 2,3MByte/s. Copying to a 400GB HFS+ logical volume on the same physical RAID5 yields about 34 MByte/s or 18 mins, which is adequate for the speed of the external SATA HD.
The cpu load while copying to ntfs-3g volume is about 12%, the volume uses 4KB clusters (converted from 64kb initially).
I can provide a kernerl trace log during copy, if required.
System Specs:
Core 2 Duo E6400
4GB DDR2-RAM
MacOS X86 10.4.8 on 200GB onBoard Intel PATA HFS+
Areca ARC-1220 PCIeX8 8-Channel-SATAII-RAID-Controller
- 4x500GB RAID5
- 2x300GB RAID0
i975X Board w/SiliconImage PCIeX1 eSATA connector
- external 200GB eSATA HDD HFS+
I'll provide more info, as needed. NTFS-3g was compiled by me, with few compatibility fixes (getresuid wrapper).
Best Regards,
Atmos
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| Mon Jan 29, 2007 18:38 |
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szaka
Tuxera CTO
Joined: Tue Nov 21, 2006 23:15
Posts: 1645
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Poor write performance on MacOS X 10.4.8 Intel Hi. It sounds like a MacFUSE problem for instance because of doing
synchronous writes. If the bad performance were due to ntfs-3g then
the ntfs-3g CPU usage would be around 100%.
Regards, Szaka
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| Mon Jan 29, 2007 18:45 |
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Atmosfear
Joined: Mon Jan 29, 2007 18:02
Posts: 3
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Thanks, I'll report to MacFUSE then.
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| Mon Jan 29, 2007 18:58 |
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sat
Joined: Tue Jan 30, 2007 20:49
Posts: 1
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Re: Poor write performance on MacOS X 10.4.8 Intel Atmosfear wrote: Hi,
I'll provide more info, as needed. NTFS-3g was compiled by me, with few compatibility fixes (getresuid wrapper).
Any chance you could post the getresuid wrapper?
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| Tue Jan 30, 2007 20:51 |
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Atmosfear
Joined: Mon Jan 29, 2007 18:02
Posts: 3
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here you go. got it from xrootd sources:
Code: #if 1 /* linux compatibility hacks ::fbu */
#include <sys/types.h>
#include <unistd.h>
#define XSPERR(x) ((x == 0) ? -1 : -x)
static int setresgid(gid_t r, gid_t e, gid_t x)
{
if (setgid(r) == -1)
return XSPERR(errno);
return setegid(e);
}
static int setresuid(uid_t r, uid_t e, uid_t x)
{
if (setuid(r) == -1)
return XSPERR(errno);
return seteuid(e);
}
static int getresgid(gid_t *r, gid_t *e, gid_t *x)
{
*r = getgid();
*e = getegid();
return 0;
}
static int getresuid(uid_t *r, uid_t *e, uid_t *x)
{
*r = getuid();
*e = geteuid();
return 0;
}
#endif /* linux compatibility hacks */
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| Fri Feb 02, 2007 20:01 |
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vertigo
Joined: Sun Feb 04, 2007 12:39
Posts: 2
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I'm a moron? I usually don't do this "configure and make and then sudo make install" stuff. I just think people should release binaries because so often stuff goes wrong in this department. But as a mac guy trying to use ntfs, then I am hitting this dead end:
/usr/bin/ld: Undefined symbols:
_getresuid
after installing pkg-config (after the configure,make,sudomakeinstallyada), I have hit this wall and I don't know where to put this wrapper code.
Just a little bit more and then I'm there, please help?
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| Sun Feb 04, 2007 12:43 |
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vertigo
Joined: Sun Feb 04, 2007 12:39
Posts: 2
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wow bad performance So I figured it out (I actually guessed correctly the first time I tried it, but accidentally copied and pasted the word "code:" above the actual code, causing a compile error).
I too am getting horrible performance (connecting to an usb drive with both an HFS+ and an NTFS partition). The NTFS partition takes about 5 minutes to copy 90 megs while it's about 5 seconds to the HFS+.
Thanks for the help with the wrapper code though.
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| Sun Feb 04, 2007 13:30 |
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szaka
Tuxera CTO
Joined: Tue Nov 21, 2006 23:15
Posts: 1645
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Poor write performance on MacOS X 10.4.8 Intel There are often new binaries releases on this forum:
http://forums.applenova.com/showthread. ... 842&page=7
The next ntfs-3g release will have better Mac OS X compatibility (getresuid
won't be used).
The MacFUSE team is working on the speed improvements.
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| Sun Feb 04, 2007 16:29 |
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