Displaying 17 results from an estimated 17 matches similar to: "Improve --inplace updates on pathological inputs"
2012 Nov 29
2
[LLVMdev] problem trying to write an LLVM register-allocation pass
I have a new problem: Register RBP is used in a function foo. (I am not
allocating RBP to any virtual register, the instances of RBP in function
foo are in the machine code when my register allocator starts.)
Function foo calls function bar. Register RBP is not saved across the
call, though it is live after the call. Function bar includes a virtual
register. The code that I'm using to
2010 Aug 14
0
server goes pathological
Ubuntu-10.04, x86, stock.
I''m running into a situation where a server goes pathological.
Basically, it becomes excruciatingly slow. I can get things through the
file system, but a simple file touch can take 6 - 12 hours.
Top shows various btrfs processes hard at work - typically 100% of a
cpu, (four cpu server), and the machine shows a load of just over 4.
Some flush-btrfs, some
2009 Nov 01
0
Internal error in 'ls' for pathological environments (PR#14036)
On Sun, Nov 1, 2009 at 6:02 AM, Peter Dalgaard <p.dalgaard at biostat.ku.dk> w=
rote:
> macrakis at alum.mit.edu wrote:
>>
>> nchar(with(list(2),ls())) gives an internal error. This is of course
>> a peculiar call (no names in the list), but the error is not caught
>> cleanly.
>>
>> It is not clear from the documentation whether with(list(2)...) is
2011 Dec 16
5
[Bug 8666] New: --debug=all9 fail
https://bugzilla.samba.org/show_bug.cgi?id=8666
Summary: --debug=all9 fail
Product: rsync
Version: 3.1.0
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P5
Component: core
AssignedTo: wayned at samba.org
ReportedBy: chris at onthe.net.au
QAContact: rsync-qa at
2007 Aug 29
3
OT: distribution of a pathological random variate
Folks,
I wonder if anything could be said about the distribution of a random variate x, where
x = N(0,1)/N(0,1)
Obviously x is pathological because it could be 0/0. If we exclude this point, so the set is {x/(0/0)}, does x have a well defined distribution? or does it exist a distribution that approximates x.
(The case could be generalized of course to N(mu1, sigma1)/N(mu2, sigma2) and one
2009 Nov 01
2
Internal error in 'ls' for pathological environments (PR#14035)
nchar(with(list(2),ls())) gives an internal error. This is of course
a peculiar call (no names in the list), but the error is not caught
cleanly.
It is not clear from the documentation whether with(list(2)...) is
allowable; if it is not, it should presumably give an error. If it is, then
ls
shouldn't have problems with the resulting environment.
> qq <- with(list(2),ls())
2004 Aug 02
4
reducing memmoves
Attached is a patch that makes window strides constant when files are
walked with a constant block size. In these cases, it completely
avoids all memmoves.
In my simple local test of rsyncing 57MB of 10 local files, memmoved
bytes went from 18MB to zero.
I haven't tested this for a big variety of file cases. I think that this
will always reduce the memmoves involved with walking a large
2008 Feb 17
1
where to look for file reconstruction
Hello all,
Thanks for all the ideas. I liked the remote to remote idea and have told my
guide about it.
Anyways, can anybody tell me which files to look into, if I want to look at
the code for file reconstruction. I have studied Dr. Tridgell's thesis on
the Rsync Algorithm and have understood the working of the algorithm. Now, I
am trying to read the code to understand it better.
Any help
2012 Dec 01
0
[LLVMdev] problem trying to write an LLVM register-allocation pass
On 11/30/2012 6:36 PM, Lang Hames wrote:
>
>
> RBP is used as the frame pointer on x86 (hence its automatic
> appearance in your code), and shouldn't be allocated to any vreg in
> function bar. Loading/saving RBP should be managed by the stack frame
> setup/teardown code.
> If it doesn't already, your allocator should filter out reserved
> registers (See
2009 Jan 15
2
Problem syncing large dataset
Hi,
When using rsync-3.0.2 through 3.0.5, I get this error on a large
dataset syncing from machine-a to machine-b:
$ /bin/rsync -aHSz /local/. machine-b:/local/.
invalid len passed to map_ptr: -1737287498
rsync error: error in file IO (code 11) at fileio.c(188) [sender=3.0.5]
This happens no matter which side initiates the connection, so this
fails in the same way:
$ /bin/rsync -aHSz
2002 Aug 05
5
[patch] read-devices
Greetings,
I'd like to propose a new option to rsync, which causes it to read
device files as if they were regular files. This includes pipes,
character devices and block devices (I'm not sure about sockets). The
main motivation is cases where you need to synchronize a large amount of
data that is not available as regular files, as in the following scenarios:
* Keep a copy of a block
2010 Nov 05
10
DO NOT REPLY [Bug 7778] New: --inplace does extra WRITE operations
https://bugzilla.samba.org/show_bug.cgi?id=7778
Summary: --inplace does extra WRITE operations
Product: rsync
Version: 3.0.7
Platform: Other
OS/Version: Linux
Status: NEW
Severity: minor
Priority: P3
Component: core
AssignedTo: wayned at samba.org
ReportedBy: ildar at altlinux.ru
2006 Oct 31
0
6413731 pathologically slower fsync on 32 bit systems
Author: perrin
Repository: /hg/zfs-crypto/gate
Revision: a593e64c4739242e2eb3a43ea296996000af0c2d
Log message:
6413731 pathologically slower fsync on 32 bit systems
Files:
update: usr/src/uts/common/fs/zfs/sys/zil.h
update: usr/src/uts/common/fs/zfs/zil.c
2008 Oct 06
1
[Game] Pathologic: help me create a useful bug report
Appdb entry (http://appdb.winehq.org/objectManager.php?sClass=application&iId=8352)
I'm trying to get all my games to run under linux, but of cause a few are giving me problems, and Pathologic is one of the few that really bothers me.
As far as I can tell, the game uses DirectX9, Windows Media format (cinematics), and OpenAL. Of the three, the WMF dependency is the most annoying, as it
2007 Sep 11
4
ext3 on zvols journal performance pathologies?
I''ve been seeing read and write performance pathologies with Linux
ext3 over iSCSI to zvols, especially with small writes. Does running
a journalled filesystem to a zvol turn the block storage into swiss
cheese? I am considering serving ext3 journals (and possibly swap
too) off a raw, hardware-mirrored device. Before I do (and I''ll
write up any results) I''d like to know
2003 Oct 05
2
Possible security hole
Maybe security related mails should be sent elsewhere? I didn't notice
any so here it goes:
sender.c:receive_sums()
s->count = read_int(f);
..
s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count);
if (!s->sums) out_of_memory("receive_sums");
for (i=0; i < (int) s->count;i++) {
s->sums[i].sum1 = read_int(f);
2014 Mar 26
11
[Bug 10518] New: rsync hangs (100% cpu)
https://bugzilla.samba.org/show_bug.cgi?id=10518
Summary: rsync hangs (100% cpu)
Product: rsync
Version: 3.1.1
Platform: All
OS/Version: Linux
Status: NEW
Severity: critical
Priority: P5
Component: core
AssignedTo: wayned at samba.org
ReportedBy: syzop at vulnscan.org
QAContact: