mail access to second disk slow

Aaron aaron at
Thu May 15 07:05:17 PDT 2003

Mail access to my second disk is excruciatingly slow.  Description and
hand-wringing below.  Any suggestions for other information to collect, or
solutions?  adTHANKSvance.

=== Brief setup and problem description:

Dual boot, Windows2K on the entire "first" disk, FreeBSD 4.8 on the entire
"second" disk.  Both IDE disks are on the first controller; the second
controller has the CD and zip disk.

This is a personal workstation (Dell XPS R450), I don't serve anything
outside my 2-workstation lan.  I run imap-uw to access my stored email, so
that I can change mail clients at will (I'm fickle), access my mail store
whether W2K or *nix is running, and easily access stored mail from either
machine on my lan.

I keep my stored email on my W2K FAT partition on the first disk, so that
I can access it from FreeBSD (and from Linux when I used that).

Ob-irritating-newbie-statement: this works fine on W2K (using cygwin's
imap-uw), and did work fine running Redhat 7.X through 8.X on the second

=== problem details:

Using imap-uw and either Mozilla 1.3 mail or pine, from freebsd, with the
mail store configured to be on the other, "first" drive, I can list my
*folders* fairly quickly, but opening a folder to list the messages takes

I also configured pine to read the folders directly, rather than go
through imap, and this is also slow (and not what I expected).

However, I can cat or vim any message file stored on the w2k disk quick as
a bunny.

I copied the entire set of mail folders from the w2k disk over to the
freebsd disk, and configured mozilla to get at them through imap.  That
also works quick as a bunny.

- accessing mail on the freebsd disk through imap is acceptably quick
- accessing mail on the w2k disk from bsd is unacceptably slow, whether
through imap or "directly" as described above for pine
- just accessing the mail files on the w2k disk as normal files, catting
and editing, is acceptably quick.

=== setup details:

bash-2.05b$ uname -a
FreeBSD 4.8-RELEASE FreeBSD 4.8-RELEASE #0: Thu Apr  3
13:07:15 GMT 2003    
root at  i386

bash-2.05b$ telnet localhost 143
Connected to
Escape character is '^]'.
IMAP4rev1 2002.332 at Thu, 15 May 2003 07:46:09 -0600 (MDT)

Note AUTH=LOGIN, this is a personal workstation.

bash-2.05b$ mount
/dev/ad1s1a on / (ufs, local)
/dev/ad1s1f on /tmp (ufs, local, soft-updates)
/dev/ad1s1g on /usr (ufs, local, soft-updates)
/dev/ad1s1e on /var (ufs, local, soft-updates)
procfs on /proc (procfs, local)
/dev/ad0s1 on /w2k (msdos, local, noexec)

The last line is the W2K disk.

Here's the W2K line from /etc/fstab:

/dev/ad0s1     /w2k     msdos   rw,-m=777,noexec     0      0

bash-2.05b$ dmesg
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 4.8-RELEASE #0: Thu Apr  3 13:07:15 GMT 2003
    root at
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (448.05-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x652  Stepping = 2
real memory  = 402653184 (393216K bytes)
config> di bt0
config> di aic0
config> di aha0
config> di adv0
config> q
avail memory = 386240512 (377188K bytes)
Preloaded elf kernel "kernel" at 0xc051d000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc051d09c.
Pentium Pro MTRR support enabled
md0: Malloc disk
Using $PIR table, 9 entries at 0xc00fdf30
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
agp0: <Intel 82443BX (440 BX) host to PCI bridge> mem
0xf8000000-0xfbffffff at device 0.0 on pci0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
pci1: <NVidia Riva TNT graphics accelerator> at 0.0 irq 11
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0x10a0-0x10af at device 7.1
on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> port 0x1080-0x109f irq 9
at device 7.2 on pci0
usb0: <Intel 82371AB/EB (PIIX4) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhub1: Texas Instruments UT-USB41 hub, class 9/0, rev 1.00/1.00, addr 2
uhub1: 4 ports with 4 removable, bus powered
ugen0: hp hp scanjet 7400c, rev 1.00/0.01, addr 3
chip0: <Intel 82371AB Power management controller> port 0x7000-0x700f at
device 7.3 on pci0
xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0x1000-0x107f mem
0xf4041000-0xf404107f irq 11 at device 13.0 on pci0
xl0: Ethernet address: 00:10:5a:aa:04:00
miibus0: <MII bus> on xl0
xlphy0: <3Com internal media interface> on miibus0
xlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pci0: <unknown card> (vendor=0x11de, dev=0x6120) at 14.0 irq 10
pci0: <unknown card> (vendor=0x12eb, dev=0x0002) at 15.0 irq 9
orm0: <Option ROMs> at iomem
0xc0000-0xc7fff,0xdc000-0xdffff,0xe4000-0xeffff on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model MouseMan+, device ID 0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1: configured irq 3 not in bitmap of probed irqs 0
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
ppbus0: IEEE1284 device found /NIBBLE/ECP
Probing for PnP devices on ppbus0:
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sio4: <U.S. Robotics 56K Voice INT> at port 0x2f8-0x307 irq 3 on isa0
sio4: type 16550A
ad0: 16479MB <Maxtor 91728D8> [33483/16/63] at ata0-master UDMA33
ad1: 8011MB <Maxtor 88400D8> [16278/16/63] at ata0-slave UDMA33
acd0: CD-RW <SONY CD-RW CRX185E1> at ata1-master PIO4
afd0: 96MB <IOMEGA ZIP 100 ATAPI> [96/64/32] at ata1-slave PIO0
Mounting root from ufs:/dev/ad1s1a
pcm0: <Aureal Vortex 8830> port 0x10b0-0x10b7,0x10b8-0x10bf mem
0xf4000000-0xf403ffff irq 9 at device 15.0 on pci0

aaron at

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