- Our website has supported motherboards.
- These motherboards have BIOSes that enable SSE on AthlonXP.
it's strange that BIOS have to do it.
- The end user should upgrade their BIOS if they have these motherboards.
ask AMD how to enable it - it's probably few lines of assembly that could
- These motherboards have BIOSes that enable SSE on AthlonXP.
it's strange that BIOS have to do it.
- The end user should upgrade their BIOS if they have these motherboards.
ask AMD how to enable it - it's probably few lines of assembly that could
be added to NetBSD initialization
6.1-RELEASE-amd64 machine. If I add /usr/lib32 to my LD_LIBRARY_PATH
it breaks all of my binaries on my 64-bit machine.
what do you expect else?
this will make system trying to bind 32-bit libs to 64-bit program. it
can't work
___
manufacturers of hardware. More recently there were times when anybody from
because managers/bosses concentrate on majority, not minority of users.
manufacturers did not notice Linux. However now it is possible to find a few
given out put normal OS - their list is at us on a site and then
Would create a striped data set across da1 and da2
What kind of performance gain can I expect from this? I'm purely thinking
about performance now - the integrity checking stuff of ZFS is a pleasant
extra.
with stripping - as much as with gstripe, ZFS do roughly the same.
with RAID-z -
should really use raidz2 in zfs (or some double parity raid on other
systems) if you are worried about data integrity. The reason being the odds
of the crc checking not detecting an error are much more likely these days.
The extra layer of parity pushes these odds into being much bigger
you are
Disks, unlike software, sometimes fail. Using redundancy can help
modern SATA drives fail VERY often. about 30% of drives i bought recently
failed in less than a year.
both checksum on and copies 1 on, and the latter isn't the
default. It's probably better to let zpool provide the
#ifdef LOADER_BZIP2_SUPPORT
bzipfs_fsops,
#endif
Is it the correct idea to:
make -C /usr/src/sys/boot -DLOADER_NO_GZIP_SUPPORT
-DLOADER_NO_BZIP2_SUPPORT ?
yes, but then you will not get any compression support, like compressed
ramdisk image. but it's probably OK for you.
Yep it probably isn't clear enough, it does mention stuff about spreading it
across vdevs, but doesn't say striped.
isn't spreading and stripping actually the same?
___
freebsd-hackers@freebsd.org mailing list
In the case of zfs yes, but not always. Eg you could have a concatenated
volume. Where you only start writing to the second disk when the 1st is
full.
i don't know how ZFS exactly allocates space, but i use gconcat with UFS
and it isn't true.
UFS do jump between zones (called cyllinder
You shouldn't need to alter the copies attribute to recover from disk
failures as the normal raid should take care of that. What the copies is
I don't think we understand each other. I say that when i want 2 copies,
ZFS should rebuild second copy if it's gone and i run resilver.
it does not,
Its all done on write, so if you update the file it will have multiple
copies again
what is exactly what i said in the beginning.
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http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe,
i bought new digital camera+8GB flash card, and when i plug it into USB
port, it's detected properly
umass0: OLYMPUS FE20,X15,C25, class 0/0, rev 2.00/1.00, addr 2 on uhub1
da0 at umass-sim0 bus 0 target 0 lun 0
da0: OLYMPUS FE20,X15,C25 1.00 Removable Direct Access SCSI-0 device
da0: 1.000MB/s
this.
No you don't you just make sure you scrub the pools regularly once a week
for instance.
AGAIN example - i had one drive failed, got it out but recovered all data
as for everything copies was set to more than one.
Or most data, but those with copies=1 wasn't critical for me.
then i
able to see a message that my camera is unknown device, for maybe 1 second
before getting reboot.
Try disabling hal (comment out hald_enable in /etc/rc.conf).
If you need hal for X, try booting without X and hal/dbus.
i don't use hal.
You might also try UMASS_PROTO_SCSI | UMASS_PROTO_BBB,
before getting reboot.
Try disabling hal (comment out hald_enable in /etc/rc.conf).
If you need hal for X, try booting without X and hal/dbus.
You might also try UMASS_PROTO_SCSI | UMASS_PROTO_BBB, or
PROTO_BBB fixed this - now works properly without errors.
THANK YOU!
how to sent device
You might also try UMASS_PROTO_SCSI | UMASS_PROTO_BBB, or
PROTO_BBB fixed this - now works properly without errors.
Can you also try UMASS_PROTO_DEFAULT?
/usr/src/sys/modules/umass/../../dev/usb/umass.c:607: error:
'UMASS_PROTO_DEFAULT' undeclared here (not in a function)
i have FreeBSD
forward.cc:978: error: 'SOL_IP' was not declared in this scope
forward.cc:978: error: 'IP_RECVTOS' was not declared in this scope
forward.cc:982: error: 'IP_PKTOPTIONS' was not declared in this scope
*** Error code 1
I have wrote to writer of zph and he suggest me to look for freebsd
However, grep -R 127.0.0.1 /etc reveals, that sendmail in many places
assumes localhost to be on 127.0.0.1 instead of looking it up in
/etc/hosts or using 127.0.0.0/8 to identify a local connection.
calling 127.0.0.1 from jail always loops back within jail. it's all fine.
I worry that more
(very roughly, in the non-sequential access case) expected to deliver
performance of four drives in a RAID0 array?
According to all the Sun documentation, the I/O throughput of a raidz
configuration is equal to that of a single drive.
exactly what i say. it's like RAID3. Not RAID5 which have
So runtime performance is on par with gcc, code size is a bit bigger
bigger code=lower performance except benchmarks :)
smaller code fits better in cache.
so there is still room for optimization in LLVM.
and for sure there will be some. Good that FreeBSD will have non-GNU
compiler soon :)
Is there any work going on to make sysinstall recognize and abe able
to create and work with GJOURNAL and ZFS? In the days of 1,5-2,0
terabyte harddrives, UFS2 + SoftUpdates simply doesn't cut it anymore,
UFS2+SoftUpdates works fine on properly configured UFS2 - and very fast.
Why you need
Interestingly in my experience its been the opposite, I've lost a few
ext3 filesystems though bad power, same for NTFS (NT4, less so with
200x) but as yet never for ufs2 (fsck has always fixed it.)
In worse cases it required manual attention :) UFS is used and improved
over 20 years, it's
noticeably higher chance of leaving you with an unbootable system than
if you were using Linux with ext3/ext4 or Windows with NTFS.
Can you back this up? I cannot recall having ever rendered a FreeBSD
system unbootable due to UFS/UFS2 problems after a power failure or
I can confirm the
problem has since been fixed.
I've had several cases that needed manual fsck. After I turned off
background fsck, the problems stopped. These days background_fsck=NO
is a standard part of my rc.conf.
and mine.
actually snapshots doesn't work on large partitions - could simply crash.
that's
to be more precise): inappropriate time of file system lock on snapshot
creation. On not-too-big 300G ufs2 not-too-heavy loaded snapshot creation time
is 20+ minutes, and 5+ from that file system blocked even on reads. This looks
unacceptable for me for any real use.
that's why i disable it.
during installation process as well gives these newer options
(UFS2+GJournal and ZFS in this case) a better exposure, resulting in
more testing, resulting in these new features getting their quirks
ironed out faster and resulting in these new features getting the
truly tested and proven by time
* malathi selvaraj malathira...@gmail.com wrote:
i am new one to freeBSD, kindly guide me
Sure. In order to be eligible to use FreeBSD, you must buy a license for
$ 100,-. I expect this money to be transferred to my bank account as
soon as possible. The IBAN number is:
You may get special hacker-support licence for $500/year, which allows you
to get up to 25 responses to any questions from freebsd-hackers list, and
any above 25 for just 15$.
Such a simple post, yet inspired so much creativity :-)
he should decide quickly, as it's limited offer of summer
thanks ;)
It's not that easy like in Polish - where you simply look if name ends
with a for women.
On Mon, 15 Jun 2009, Pranav Peshwe wrote:
From the name, I guess, its a 'she' not a 'he' :)
On 6/15/09, Wojciech Puchar woj...@wojtek.tensor.gdynia.pl wrote:
You may get special hacker
In other words, is there still reason for the highly experimental
feature warning?
Last time when I added the warning, it was because some data corruption
issue that can be identified by fsx which I didn't got a chance to
investigate further. I think tmpfs is Ok for some usual work but maybe
multiple times:
ianto# mount | grep ' /tmp'
tmpfs on /tmp (tmpfs, local)
ianto# mount /tmp
ianto# mount | grep ' /tmp'
tmpfs on /tmp (tmpfs, local)
tmpfs on /tmp (tmpfs, local)
ianto# umount /tmp
ianto# mount | grep ' /tmp'
tmpfs on /tmp (tmpfs, local)
ianto#
it's not only tmpfs. you
cheers.
Are you sure this is wise? after all 125 millibytes would be 1 bit..
Agree. While lots of people use m instead of M and b instead of B, this is
not right to correct proper behavior to improper just for them.
___
start reading books
On Thu, 18 Jun 2009, malathi selvaraj wrote:
how to start local host is freeBSD,
i install apache22 even after localhost is not working
___
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i have pentium 200 with that card. doing ftp from other machine, getting
3.5MB/s (HDD can 10MB/s, DMA) having 45%-55% interrupt load.
when sending it's not that bad.
tried writing file to disk with cat /dev/zero file, it's only 3% ints
with 10MB/s traffic.
Why it's THAT bad?
3.5MB/s is
Wojciech Puchar woj...@wojtek.tensor.gdynia.pl writes:
Why it's THAT bad?
http://svn.freebsd.org/base/head/sys/pci/if_rl.c
Scroll down past the copyright, license and attribution. Read the
38-line comment that explains just how crappy this chip really is.
Well - really low end
But - this computer can do memcpy at 80MB/s, so at 3.5MB/s it should be 5%
CPU for memcpy, and one interrupt per one packet (2500 packets/s).
Is something more that make it consume 50% CPU?
Accessing the on-card memory through PCI is guaranteed to be
slower than the main memory, and depending
Why it's THAT bad?
Because CPU always have to copy frames to/from the controller.
comment says card do DMA. just then it has to copy but within main memory
not PCI.
These CPU cycles could have been used in other task to give more
performance such as SSH encryption/decryption, checksum
I have a remote server that was dd copied from one hard drive to another -
essentially the same size. The disk device name (ad4) is the same but the
geometry for the new drive has a CHS of 969021/16/63
On booting it hangs at:
F1FreeBSD
Boot: F1
I copied the MBR with 'boot0cfg -B
i enabled
vm.pmap.pg_ps_enabled: 1
could you please explain what exactly this values means?
because i don't understand why promotions-demotions!=mappings
vm.pmap.pde.promotions: 2703
vm.pmap.pde.p_failures: 6290
vm.pmap.pde.mappings: 610
vm.pmap.pde.demotions: 289
other question - tried
other question - tried enabling it on my i386 laptop (256 megs ram),
always
mappings==0, while promitionsdemotions0.
The default starting address for executables on i386 is not aligned to a 2/4MB page boundary.
Hence, mappings are much less likely to occur.
certainly
Declared average latency for desktop hard drives (see
http://www.seagate.com/docs/pdf/datasheet/disc/ds_barracuda_7200_12.pdf) is
latency is average time to wait until data will be below head. it's by
average half on single rotation. for 7200 rpm drive it's 120rps so half
rotation takes
i'm getting that crap every time i remount filesystem and on startup.
GEOM_LABEL: Label ufsid/48dd2cbe8423dd9e removed.
GEOM_LABEL: Label for provider mirror/sysa is ufsid/48dd2cbe8423dd9e.
GEOM_LABEL: Label ufsid/48dd2cbe8423dd9e removed.
GEOM_LABEL: Label for provider mirror/sysa is
i'm using glabel only to avoid mess about what drive is connected to what
SATA port.
This is effectively debugging output that slipped into the release and
shouldn't have. I believe it's now removed in 8.x, I'm not sure it's been
MFC'd to 7.x yet. The output can be entirely ignored and does
i have few questions.
1) suppose i map 1TB of address space as anonymous and touch just one
page. how much memory is used to manage this?
2) suppose we have 1TB file on disk without holes and 10 processes
mmaps this file to it's address space. are just pages shared or can
pagetables be
page. how much memory is used to manage this?
I am not sure how deep the enumeration you want to know, but the first
approximation will be:
one struct vm_map_entry
one struct vm_object
one pv_entry
actually i don't need precise answer but algorithms.
Page table structures need four pages
You are correct about the page table page. However, a superpage mapping
consumes a single PV entry, in place of 512 or 1024 PV
entries. This winds up saving about three physical pages worth of memory for
every superpage mapping.
does it actually work?
simple test
before (only idle system
Notice that vm.pmap.pde.promotions increased by 31. This means that 31
superpage mappings were created by promotion from small page mappings.
thank you. i looked at .mappings as it seemed logical for me that is shows
total.
In contrast, vm.pmap.pde.mappings counts superpage mappings that
how to do this and what the hell it is used at all?
i found somewhere it is some debugging info but i do not put -g option to
compiler while compiling and still get substantial amount of this trash.
trying strip -R .eh_frame -R .eh_frame_hdr results in working but
LARGER binary, padded with
i both don't use C++ and don't want to debug when i am linking final
binary.
how to turn this off?
On Thu, 20 Oct 2011, Joerg Sonnenberger wrote:
On Thu, Oct 20, 2011 at 09:41:24AM +0200, Wojciech Puchar wrote:
how to do this and what the hell it is used at all?
It is used to allow
i both don't use C++ and don't want to debug when i am linking final binary.
how to turn this off?
Which compiler do you use?
supplied with FreeBSD 8.2
[wojtek@wojtek ~]$ cc -v
Using built-in specs.
Target: amd64-undermydesk-freebsd
Configured with: FreeBSD/amd64 system compiler
Thread
this do the same that strip -R what i already tried and as i already
wrote - the same results.
program is working and sections are stripped but i am getting ca 1MB of
binary zero paddings.
___
freebsd-hackers@freebsd.org mailing list
After I done this, the binary size *increased* a lot, while objdump shows that
the content is less. I don't understand.
same for me
strip -R .eh_frame -R .eh_frame_hdr do the same.
___
freebsd-hackers@freebsd.org mailing list
--remove-section .rel.eh_frame --remove-section .rela.eh_frame
$your_executable
After I done this, the binary size *increased* a lot, while objdump shows
that the content is less. I don't understand.
add -fomit-frame-pointer -fno-exceptions -fno-asynchronous-unwind-tables
-fno-unwind-tables
-fno-asynchronous-unwind-tables should get rid of unwind information,
a.k.a. 'crap'.
and this worked. found it just before getting your mail ;)
yes and this is crap... possibly it is needed for some cases and some
languages and i would not call it crap if it would not be included by
default!
on entry into each function, which is different from usual x86
convention.
Asynchronous unwind info (yeah, same stuff you keep referring to as
crap), is the only way you can debug your program or get anything
remotely close to usable backtrace, by default.
i understand but i DO NOT called
that i do not want to debug isn't it?
It seems like a binutils bug (or somewhere in that immediate
neighborhood) because all debugging related sections should be
stripped out by strip including unwind, correct?
indeed.
___
footprint?
Almost certainly yes. Measuring virtual memory is significantly less
important for real-world loads. Some of this is very nicely described
here: https://www.varnish-cache.org/trac/wiki/ArchitectNotes .
definitely.
just run top and compare RES and SIZE fields.
extreme example:
it is easy to see that VM settings are not fine for MODERN hardware.
We have gigabytes, not megabytes of RAM, hard disks can be efficient only
if average I/O size is in order of megabyte or so, not tens of kB.
In spite of having gigabytes of RAM, sometimes we DO NEED swapping.
often we have
+++ swap_pager.c2012-02-25 13:19:51.0 +0100
@@ -119,7 +119,7 @@
* The 32-page limit is due to the radix code (kern/subr_blist.c).
*/
#ifndef MAX_PAGEOUT_CLUSTER
-#define MAX_PAGEOUT_CLUSTER 16
+#define MAX_PAGEOUT_CLUSTER 256
#endif
[snip]
but swap_pager.c patch seems
right. but still 32 pages is 128kB, but i see 64kB I/Os in systat/vmstat
Right, but the comment says to not define MAX_PAGEOUT_CLUSTER to a value
greater
than 32, but you did that. So all bets could be off unless you examined the
code and know exactly what should happen in this case.
I
repeatable crash when turning off my 9GB swap partition (of which 0 bytes
was used):
Dump header from device /dev/ada0b
Architecture: amd64
Architecture Version: 2
Dump Length: 198971392B (189 MB)
Blocksize: 512
Dumptime: Mon Mar 5 09:29:41 2012
Hostname: wojtek.tensor.gdynia.pl
i created for test ISO image with 6GB file in it using
mkisofs -rJ --iso-level 3 -o /path_to/file.iso .
worked fine.
tar tvf file.iso shows things fine.
even windoze under virtualbox with file.iso mounted as CD/DVD - works
fine, and see 6GB file.
did mdconfig -a -t vnode -f file.iso and
I am currently trying to understand how fs/udf handles multiple extents.
/usr/src/sys/fs/udf/udf_vnops.c
bears in function udf_bmap_internal() a comment:
* If the offset is beyond the current extent, look for the
* next extent.
Have a nice day :)
Thomas
for
http://www.vikingmodular.com/products/arxcis/ddr3/ddr3.html
or ZFS ZIL device for ZFS fans.
anyone know exactly how it is visible and how it works?
isn't BIOS clearing out memory on reboot?
FreeBSD is but it can be patched easily.
How to get DRAM controller mapping i mean what DIMM is at
http://www.vikingmodular.com/products/arxcis/ddr3/ddr3.html
In general devices like these that I've dealt with in the past are
presented as SATA or SAS devices, but some devices require additional
drivers (take Ramdrives devices for instance).
this one - as described - is 100% regular DDR3
power fails). So I'm guessing that if it works with your motherboard,
it will work regardless of the OS.
How it's presented to the OS? ENOCLUE (ask Viking).
it is DDR3 DIMM so it is presented as RAM.
ENODRIVER in FreeBSD. but could be trivial to implement, if it is known on
which memory
After using Linux for almost 15 years, I only recently started using
FreeBSD. I own an internet startup and was looking for a solution for
Those who need FreeBSD already use it. no need to promote. Or maybe need
to promote bigger donations to FreeBSD community from big users.
Those who
is there any way to speed up NFS server?
from what i noticed:
- reads works fast and good, like accessed locally, readahead up to
maxbsize works fine on large files etc.
- write works terribly. it performs sync on every write IMHO,
setting vfs.nfsrv.async=1 improves things SLIGHTLY, but
and are working not toying around - use FreeBSD.
Not really true and kind of a poor attitude.
possibly but this is what i observe.
Yes. many people needing high performance already use FreeBSD, but
there are lots of services that could benefit from FreeBSD who are
not very aware of it.
My opinion is that most important obstacle in front of FreeBSD is its
installation structure :
It is NOT possible to install and use a FreeBSD distribution directly as it is .
In Linux distributions , when a distribution is installed , the user , NOT root
,
can use its facilities WITHOUT
Absolutely I do NOT have any idea against PC-BSD . My wish is that it
Me too. in spite that it is FreeBSD based, it's good it is separate. This
means that people that want windows style computing already have something
FreeBSD based.
So what a problem?
There is such a very nice distribution :
http://ghostbsd.org/
Also, freesbie.org
That's great - there are distributions with ready to use desktop
environments etc. etc. while the main one is always the same. Everyone
gets what he/she needs.
___
FreeBSD installation and boot style are very nice . Personally I dislike very
much Ubuntu-like installs ( nothing is displayed about
what is going on ) and I never use it ( in spite of I am installing each
release of it ) .
Another way to promote FreeBSD - show Solaris first. Yesterday just
there are lots of services that could benefit from FreeBSD who are
not very aware of it. They may have heard the name, and even know
that it is an OS, but have heard it passed off as a non-entity in
the field and do not know better than that.
Don't really understand you.
Basically everything
the server is required to do that. (ie. Make sure the data is stored on
stable storage, so it can't be lost if the server crashes/reboots.)
Expensive NFS servers can use non-volatile RAM to speed this up, but a generic
FreeBSD box can't do that.
Some clients (I believe ESXi is one of these)
Mac OSD _is_ a UNIX: http://www.linux-mag.com/id/4376
So, why not use a UNIX on the Desktop? :)
as well as my VoIP phone gateway software. as well as Mac software it is
unix based but NOT meant for it's user to interact with unix commands or
even know it is.
Just opposite to FreeBSD/amd64.
Another way to promote FreeBSD - show Solaris first. Yesterday just to look
downloaded from oracle. Incredibly slow, no idea
what's going on not only while installing but when trying to do anything and
understand /etc/ hierarchy. incredible slow mess - this
is the most advanced unix from
I prefer less advanced FreeBSD
Ridiculing other projects is not a great way to show superiority.
+1
Leave mudslinging to marketing and politicians :)..
-Garrett
as for now you and few other people work hard to DE-promote FreeBSD from
those few people that are able to make use of it but
i tried nfsv4, tested under FreeBSD over localhost and it is roughly the
same. am i doing something wrong?
On Mon, 30 Apr 2012, Peter Jeremy wrote:
On 2012-Apr-27 22:05:42 +0200, Wojciech Puchar woj...@wojtek.tensor.gdynia.pl
wrote:
is there any way to speed up NFS server?
...
- write
new (default on 9) sets it to MAXBSIZE, which is currently 64K, but
I would like to get that increased. (A quick test suggested that the
kernel works when MAXBSIZE is set to 128K, but I haven't done much
testing yet.)
From a long time my kernels have MAXBSIZE of 2 megabytes which is right
Advertising that it exists and is used is more important than saying x
sucks, use y instead. This is the tone I was getting from the previous response and
this is what I discourage as well as others on the list.
It was just an example. I don't use FreeBSD because Oracle Solaris sucks
Joe user, students, etc really don't care about the underlying system as long
as the GUIs obscure this.
Indeed you are right. Actually they don't completely know what happens.
This is normal, but the poor word in your sentence is students.
Unfortunately, from my observations, this is
Probably not. NFSv4 writes are done exactly the same as NFSv3. (It changes
other stuff, like locking, adding support for ACLs, etc.) I do have a patch
is there any chance to improving it? i mean to cluster writes up to
MAXBSIZE on nfs server, just like local UFS do?
I think The power to serve, pretty much sums it up nicely. :-)
that simple. While whom/what it serve it depends. But it have to serve
someone needs. Contrary to computer owner being a server for someone
else needs :)
now.
While I know this probably seems pointless, based on your
Not really, no. I was referring to the practice of starting a gazillion
services by default, including dbus, avahi, ftp and http services,
file sharing components, and all the rest of the stuff that is now
commonly installed as part of a Linux desktop. SELinux is indeed
one form of hardening,
cxgbc0}
12 root -68- 0K 816K WAIT7 0:31 0.00% intr{irq280:
cxgbc0}
Back in the day there used to be code in cxgb to bind different
interrupts to different CPUs but it was removed because the kernel
distributed them across CPUs anyway. So what changed? This appears 8.3
I installed FreeBSD9.0 to IBM R51.Gnome startup black screen,
only to restart.My graphics card is 82852/855GM Integrated Graphics
Device.Is there any solution?Can you give me a detailed step?
? Thank you!
same thing here. it is not video card dependent IMHO
chao zhong li
2.12/5/13
diagonising? means diagnosing agonising? good word :)
that for some reason the FreeBSD CPU/bus speed controls and such are
not working based on the following item I found in my dmesg's:
acpi_tz0: _CRT value is absurd, ignored (-273.2C)
seems like superfluid helium produced in that
same. am i doing something wrong?
I found NFSv4 to be much *slower* than NFSv3 on FreeBSD, when I
benchmarked it a year or so ago.
both are just right in you read (NFSv4 taking a bit more CPU), and both
are awful at writes.
for me now the only way to get NFS working well is to use unfsd
great idea!
On Sat, 5 May 2012, Stephen Montgomery-Smith wrote:
Find some mailing lists that have nothing to do with FreeBSD, and barrage
them with spam promoting FreeBSD.
:-)
___
freebsd-hackers@freebsd.org mailing list
Today, FreeBSD works on some of the most powerful equipment in the world.
Equipment where price is hardly an issue. We have a great many to thank for
that.
and works on low end hardware. The same FreeBSD and it can be tuned well
for both cases.
___
sorry if off topic but is today Google needed to do anything and must
supervise everything? Cannot people just write a code as they always did?
I have created a page in the FreeBSD Wiki
(http://wiki.freebsd.org/SummerOfCode2012/AutomatedKernelCrashReportingSystem)
where I describe in details
On 2012-May-18 22:54:43 +0200, Dimitry Andric d...@freebsd.org wrote:
Be sure to use -t enable when creating the filesystem:
Only if your SSD supports TRIM. Some consumer-grade SSDs don't and
get very confused if sent TRIM commands.
mine do.
___
mine do.
The disk also has be be connected to a disk arch which supports
BIO_DELETE which ATM is only ata unless your running HEAD which
also has support in da
FreeBSD 9 support it and it do works.
___
freebsd-hackers@freebsd.org mailing list
Talking about another question, related to file systems on SSD:
My netbook with the two SSD has file systems mounted as:
$ df -kh
Filesystem SizeUsed Avail Capacity Mounted on
/dev/ada0s1a3.7G567M3.1G15%/
/dev/ada1s1a 14G8.7G5.9G60%/usr/local
Why? Your laptop have most probably slow CPU and it will make everything
too slow if you make everything encrypted.
I'd suggest some experiments - create a largish RAMdisk with and without
GELI and see how the performance compares (this will be a lot faster than
converting your SSD as well as
use tmpfs and don't fear to add /var/tmp to it.
I would fear to add /var/tmp-- /var/tmp should persist across reboots.
Chris
as i noted - check your case.in my case it is not a problem. it your it
may.
Never blindly follow rules, good practices etc..
is it possible. suppose i have 1GB file with my data and 100 1 megabyte
parts of it is no longer needed. i could reorganize that file to take
900MB or... can i call some system function to punch holes?
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...
# geli attach /dev/md1
Enter passphrase:
# dd if=/dev/md1.eli of=/dev/null bs=128k count=4k
536868864 bytes transferred in 35.093015 secs (15298454 bytes/sec)
# dd if=/dev/zero of=/dev/md1.eli bs=128k count=4k
536868864 bytes transferred in 38.044995 secs (14111419 bytes/sec)
# geli detach
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