Displaying 20 results from an estimated 25 matches for "pidstat".
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biostat
2018 Nov 08
2
Avoiding constant HDD access
...; > conclusion?
> >
> > OK, the OP posted lines like these:
> >
> > 04:11:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay
> > Command 04:11:28 AM 0 832 0.00 0.20 0.20
> > 0 /usr/sbin/smbd -D
> >
> > And from 'man pidstat'
> >
> > kB_rd/s
> > Number of kilobytes the task has caused to be read from disk
> > per second.
> >
> > kB_wr/s
> > Number of kilobytes the task has caused, or shall cause to be
> > written to disk per second.
> >
> >...
2018 Nov 08
3
Avoiding constant HDD access
...gt; Rowland,
>
> Can you point us as the evidence that leads you to that conclusion?
OK, the OP posted lines like these:
04:11:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay Command
04:11:28 AM 0 832 0.00 0.20 0.20 0 /usr/sbin/smbd -D
And from 'man pidstat'
kB_rd/s
Number of kilobytes the task has caused to be read from disk per second.
kB_wr/s
Number of kilobytes the task has caused, or shall cause to be written to disk per second.
kB_ccwr/s
Number of kilobytes whose writing to disk has been cancelled by the task.
Thi...
2009 Oct 23
2
IO statistic Centos 5.4
Hi,
Has kernel-2.6.18-128.1.1 support for IO statistic for example when
using "pidstat -d"?
Thanks in advance!
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Sergio Belkin -
2011 Jul 30
5
Memory problems/questions
I have noticed that many games (Farcry 2, Fallout 3, Fallout: New Vegas, Drakensang) crash with some form of out of memory messages. So obviously something is leaking memory (whether it is wine or the game or drivers, I cannot say). But it always happens as soon as wine uses ~1.5 GB of RAM. Also I wonder if it has something to do with this bug: http://bugs.winehq.org/show_bug.cgi?id=25428
I ran
2018 Nov 07
2
Avoiding constant HDD access
...te:
>
>> I'm running a Samba server on Raspbian and observing that Samba
>> during idle periods is constantly (every minute) writing to HDD
>> (maybe doing some journaling?) what causes the HDD to constantly spin
>> and never standby:
>>
>> root at rpi:~# pidstat -dl 20
>> Linux 4.4.50-v7+ (localhost) 11/07/2018
>> _armv7l_ (4 CPU)
>> 04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay Command
>> 04:10:28 AM 0 832 0.00 0.20 0.20
>> 0 /usr/sbin/smbd -D
>> 04:11:08 AM UID PID kB_rd/s...
2018 Nov 08
3
Avoiding constant HDD access
...return true;
> }
>
> so yes it's goint to look at smb.conf and check_log_size()
> will do an fstat() on the open log file descriptor, so this
> may explain it.
>
Yes, but it isn't doing a read, it is trying to do a write and then
being cancelled.
I have left 'pidstat' running overnight and there is no mention of
'smbd' in the output anywhere.
If the OP is using 4.2-14, he is using Raspbian Jessie, I have advised
the OP to upgrade to the latest Raspbian, this will get Samba 4.5.x
Rowland
2018 Nov 07
0
Avoiding constant HDD access
...observing that Samba
> >>>> during idle periods is constantly (every minute) writing to HDD
> >>>> (maybe doing some journaling?) what causes the HDD to constantly
> >>>> spin and never standby:
> >>>>
> >>>> root at rpi:~# pidstat -dl 20
> >>>> Linux 4.4.50-v7+ (localhost) 11/07/2018
> >>>> _armv7l_ (4 CPU)
> >>>> 04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay
> >>>> Command 04:10:28 AM 0 832 0.00 0.20 0.20
> >>>> 0...
2018 Nov 07
2
Avoiding constant HDD access
...;
> > I'm running a Samba server on Raspbian and observing that Samba
> > during idle periods is constantly (every minute) writing to HDD
> > (maybe doing some journaling?) what causes the HDD to constantly spin
> > and never standby:
> >
> > root at rpi:~# pidstat -dl 20
> > Linux 4.4.50-v7+ (localhost) 11/07/2018
> > _armv7l_ (4 CPU)
> > 04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay Command
> > 04:10:28 AM 0 832 0.00 0.20 0.20
> > 0 /usr/sbin/smbd -D
> > 04:11:08 AM UID PID kB_...
2018 Nov 07
3
Avoiding constant HDD access
I'm running a Samba server on Raspbian and observing that Samba during idle
periods is constantly (every minute) writing to HDD (maybe doing some
journaling?) what causes the HDD to constantly spin and never standby:
root at rpi:~# pidstat -dl 20
Linux 4.4.50-v7+ (localhost) 11/07/2018 _armv7l_ (4 CPU)
04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay Command
04:10:28 AM 0 832 0.00 0.20 0.20 0 /usr/sbin/smbd -D
04:11:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay Command
04:...
2015 Mar 08
1
dovecot auth-worker error happens when I enabled the dovecot to consider both the system account and the MySQL virtual mailbox databases.
...1 2015: executable:
/usr/lib/dovecot/auth (command line "dovecot/auth -w")
ERROR: apport (pid 29249) Mon Mar 9 01:26:31 2015: Unhandled exception:
Traceback (most recent call last):
File "/usr/share/apport/apport", line 391, in <module>
if is_closing_session(pid, pidstat.st_uid):
File "/usr/share/apport/apport", line 213, in is_closing_session
env = e.read().split('\0')
File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' cod...
2018 Nov 07
4
Avoiding constant HDD access
...ba server on Raspbian and observing that Samba
>>>> during idle periods is constantly (every minute) writing to HDD
>>>> (maybe doing some journaling?) what causes the HDD to constantly
>>>> spin and never standby:
>>>>
>>>> root at rpi:~# pidstat -dl 20
>>>> Linux 4.4.50-v7+ (localhost) 11/07/2018
>>>> _armv7l_ (4 CPU)
>>>> 04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay
>>>> Command 04:10:28 AM 0 832 0.00 0.20 0.20
>>>> 0 /usr/sbin/smbd -D
>...
2018 Nov 07
2
Avoiding constant HDD access
...pbian and observing that Samba
> > > > during idle periods is constantly (every minute) writing to HDD
> > > > (maybe doing some journaling?) what causes the HDD to constantly
> > > > spin and never standby:
> > > >
> > > > root at rpi:~# pidstat -dl 20
> > > > Linux 4.4.50-v7+ (localhost) 11/07/2018
> > > > _armv7l_ (4 CPU)
> > > > 04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay
> > > > Command 04:10:28 AM 0 832 0.00 0.20 0.20
> > > > 0 /usr/sbi...
2018 Nov 07
0
Avoiding constant HDD access
...m running a Samba server on Raspbian and observing that Samba
> >> during idle periods is constantly (every minute) writing to HDD
> >> (maybe doing some journaling?) what causes the HDD to constantly
> >> spin and never standby:
> >>
> >> root at rpi:~# pidstat -dl 20
> >> Linux 4.4.50-v7+ (localhost) 11/07/2018
> >> _armv7l_ (4 CPU)
> >> 04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay
> >> Command 04:10:28 AM 0 832 0.00 0.20 0.20
> >> 0 /usr/sbin/smbd -D
> >> 04:11...
2018 Nov 08
0
Avoiding constant HDD access
...nt us as the evidence that leads you to that conclusion?
>
> OK, the OP posted lines like these:
>
> 04:11:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay Command
> 04:11:28 AM 0 832 0.00 0.20 0.20 0 /usr/sbin/smbd -D
>
> And from 'man pidstat'
>
> kB_rd/s
> Number of kilobytes the task has caused to be read from disk per second.
>
> kB_wr/s
> Number of kilobytes the task has caused, or shall cause to be written to disk per second.
>
> kB_ccwr/s
> Number of kilobytes whose writing to d...
2018 Nov 09
0
Avoiding constant HDD access
On Thu, Nov 08, 2018 at 07:18:40PM +0000, Rowland Penny via samba wrote:
> That is what I thought.
>
> I have had 'pidstat' running on a Unix domain member, Samba
> 4.6.15-Debian, for quite sometime and I got two lines like this:
>
> 15:13:57 0 3571 -1.00 -1.00 -1.00
> 1 /usr/sbin/winbindd
>
> and this twice:
>
> 11:38:17 10000 27033 -1.00 -1.00...
2008 May 26
1
I/O statistics per PID
Hi,
I've found a great tool called pidstat which is able to report I/O
disks statistic. But, it's only for kernels 2.6.20 and later only, is
there any tool for Centos xen kernel?
Thanks in advance!
--
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Open Kairos http://www.openkairos.com
Watch More TV http://sebelk.blogspot.com
Sergio Belkin -
2014 Dec 04
2
Problem with AIO random read
Hello Volker,
Thanks for kindly feedback :)
> When the system is stalled, how many threads does the smbd
>have active? /proc/pid/tasks will tell you.
At the beginning ...
pidstat -t|grep smbd
11:41:16 AM 0 5388 - 0.00 0.00 0.00 0.00 1
smbd
11:41:16 AM 0 - 5388 0.00 0.00 0.00 0.00 1
|__smbd
11:41:16 AM 0 5390 - 0.00 0.00 0.00 0.00 1
smbd
11:41:16 AM 0 - 5390...
2018 Nov 07
0
Avoiding constant HDD access
...ing a Samba server on Raspbian and observing that Samba
> > > during idle periods is constantly (every minute) writing to HDD
> > > (maybe doing some journaling?) what causes the HDD to constantly
> > > spin and never standby:
> > >
> > > root at rpi:~# pidstat -dl 20
> > > Linux 4.4.50-v7+ (localhost) 11/07/2018
> > > _armv7l_ (4 CPU)
> > > 04:10:08 AM UID PID kB_rd/s kB_wr/s kB_ccwr/s iodelay
> > > Command 04:10:28 AM 0 832 0.00 0.20 0.20
> > > 0 /usr/sbin/smbd -D
> > >...
2017 Aug 10
2
extremely low performance on Samba 4.2.14-Debian
...ontroller,
same OS, etc) when an smbd process is writing at 500/600 MB/s the smbd
CPU consumption maxes out at 47%!
I don't know what's wrong and why smbd is burning CPU cycles like this.
Here is a quick comparison I've done. Here is the "bad" machine:
root at storiq-111:~# pidstat -p 11694 2 20
Linux 4.4.78-storiq64-opteron (storiq-111) 10/08/2017 _x86_64_ (32 CPU)
16:30:12 UID PID %usr %system %guest %CPU CPU Command
16:30:14 0 11694 0,00 0,00 0,00 0,00 8 smbd
16:30:16 10500 11694 48,00 8,00 0,00...
2014 Dec 03
2
Problem with AIO random read
Hello list,
I setup Iometer to test AIO for 100% random read.
If "Transfer Request Size" is more than or equal to 256 kilobytes,in the
beginning the transmission is good.
But 3~5 seconds later,the throughput will drop to zero.
Server OS:
Ubuntu Server 14.04.1 LTS
Samba:
Version 4.1.6-Ubuntu
Dialect:
SMB 2.0
AIO settings :
aio read size = 1
aio write size = 1
vfs objects =