search for: bottlenecks

Displaying 20 results from an estimated 1630 matches for "bottlenecks".

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2005 Mar 22
2
bottlenecks
Hi I must to estimate the* performance. I am try to understand which can be the eventual bottlenecks. Have you some suggestion? Can you to signal to me some problems? Thanks Alessandra
2000 Jun 05
1
Samba bottlenecks
Samba bottlenecks? As my network grows I'll probably find Samba bottlenecks sooner or later - such as saturated bandwidth, internal I/O, bloated user database. Are there any signs to read foretelling the apocalypse? Are the any viable solutions? -- J?rgen Persson
2002 May 22
2
rsync bottleneck
Hello, I'm planning to use rsync for backup a lot of nodes to one rsync server over wan. I'm aware of the fact that on big directory tree rsync will consume a lot of memory and some time even hang. Do you have any estimation on how many rsync client can work with one server at the same time ? I can control each client bandwidth. What will be the bottleneck on the server resource ? Is
2019 Aug 06
1
Samba async performance - bottleneck or bug?
Hi David, > You're still using direct I/O with fio, which will likely disallow > client side caching with oplocks/leases. Is there a way to bypass this with settings in smb.conf at all and transform all writes to async? > I'd recommend checking that your (cifs.ko?) client is using a relatively > modern SMB2+ dialect and that leases are enabled on both sides. Yes, I
2010 Mar 16
1
bottlenecks in R script
hello *, im running into two major bottlenecks an R script. 1. going through a 40mb file and reading in via readLines() 1 line at a time is almost an order of magnitude slow than the equivalent in python, im wondering if there are alternatives to readLines(), doing more lines at a time helps a bit 2. generating date sequences takes a long tim...
2017 Sep 07
0
investigate & troubleshoot speed bottleneck(s) - how?
...when we look at how "raw" fs vs glusterfs does then we wonder - how come!? I know such a comparison is oversimplification or maybe even unfair but when I see such a gigantic performance difference then I think, I hope - it must be possible to help with a detective work to unravel any bottlenecks that may hamper glusterfs so badly that almost to a point that one wonders... what is the point. I did today such a oversimplified test, I used dbench on a raw xfs lvm raid0 four ssd pvs (no hardware raid) $ dbench -t 60 10 ... 8 of 10 processes prepared for launch?? 0 sec 10 of 10 processes p...
2010 Oct 10
3
WINE, StarCraft II and I/O bottlenecks
Hi all. Since I installed SC2 on my Ubuntu 10.04 x86-64 (Phenom II X4 965 BE, 8 GB Ram, nVidia 470 GTX - Driver 260.19.06, USB mic+headphones), I never managed to play at it with Ultra details with more than 12~15 FPS. You could say that the fault is in a slow CPU, bad videocard or lousy sound card (the above USB stuff). But the CPU isn't that bad, the ram quantity is more than enough and
2007 Feb 28
1
Winbindd has still bottlenecks when used with interdomain trusts.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Greetings! I run samba 3 since several years in a domain with more than 10000 users and multiple departments. We have a central Domain running a PDC and some domains in the departments. The domains in the departments are connected to the central domain via interdomain trusts. All PDCs are samba 3 using the same LDAP backends (very fast SunONE LDAP
2019 Jul 25
0
Samba async performance - bottleneck or bug?
Hi, On Fri, 19 Jul 2019 23:26:55 +0000, douxevip wrote: > So to summarize, this is the situation: > > 1) I run a fio benchmark requesting, small, random, async writes. Command is "fio --direct=1 --sync=0 --rw=randwrite --bs=4K --numjobs=1 --iodepth=1 --runtime=60 --group_reporting --name=sambatest --size=32k --time_based". I run this command on both the host, as on the Samba
2010 Sep 23
2
Possible to split message store location?
We have a few dovecot servers all pointing to the same mail location (an NFS mount on a NAS drive). This could lead to a possible bottleneck eventually and we were wondering if it's possible to have dovecot direct x number of users to one message store location while others get their mail on a different mount?
2009 Jun 27
1
Does wine bottleneck framerate?
http://www.youtube.com/watch?v=BcwieeBEySc My performance doesn't even come close to this even at low resolution and overclocked, and I have the 512Mb version of this card, this guy has the 256mb version and I have the same settings, i've seen people run some really high-end games on this like crysis at decent settings, (not high just decent). Does wine actually bottleneck performance on
2007 Mar 14
3
I/O bottleneck Root cause identification w Dtrace ?? (controller or IO bus)
Dtrace and Performance Teams, I have the following IO Performance Specific Questions (and I''m already savy with the lockstat and pre-dtrace utilities for performance analysis.. but in need of details regarding specifying IO bottlenecks @ the controller or IO bus..) : **Q.A*> Determining IO Saturation bottlenecks ( */.. beyond service times and kernel contention.. )/ I''m trying to quantify the /*% of resources consumed on the IO side*/ of things. For the cpu, memory, kernel, etc.. I can see where there is contentio...
2010 Jun 05
20
How many guests
Hi Everyone, I have a Dell R210 server which has a Xeon X3430 Quad Core CPU (2.4Ghz x 4) with 8GB of RAM. I intend to use the H200 controller in a RAID1 setup How many VMs do you think I''d be able to run on this machine? Is 20 pushing it? I''d say most (if not all) guests would be in PV mode. Thanks _______________________________________________ Xen-users mailing list
2019 Jul 19
0
Samba async performance - bottleneck or bug?
Hi, On Thu, 18 Jul 2019 19:04:47 +0000, douxevip via samba wrote: > Hi, > > I have a ZFS dataset that has sync writes disabled (setting sync=disabled) which means that it will only do async writes, and sync requests get converted to async writes. The ZFS dataset is hosted on a single Samsung 840 Pro 512GB SATA SSD. > I have this same dataset served as a Samba share, using Proxmox VE
2006 Mar 02
1
Managed Switches QoS to deal with network bottleneck
Good Day Everybody, I am in the process of planning a phone system for a small business (15 extensions - 4 PSTN lines [to be connected by ATAs]). The plan is to install an IP Phone everywhere there is an existing computer workstation - using the same LAN for phones and computers. The layout involves workstations connected to two switches (the unmanaged 'dumb' type) and the switches
2005 Mar 20
4
I/O descriptor ring size bottleneck?
Hi everyone, I''m doing some networking experiments over high BDP topologies. Right now the configuration is quite simple -- two Xen boxes connected via a dummynet router. The dummynet router is set to limit bandwidth to 500Mbps and simulate an RTT of 80ms. I''m using the following sysctl values: net.ipv4.tcp_rmem = 4096 87380 4194304 net.ipv4.tcp_wmem = 4096
2004 Nov 19
4
Trying to find a bottleneck
I'm trying to get my network setup as streamlined as possible. I ran a brain-dead-simple speed test of Samba and I'm very confused by the results. Here's my setup: Fast new WinXP Pro machine NetGear GA311 gigabit ethernet ^ | dedicated gigabit ethernet line (no switch) v RTL8169 gigabit ethernet Relatively fast new Debian Linux machine I set up ramdisks on both
2016 Mar 23
2
[RFC] Lazy-loading of debug info metadata
...; +Reid, who's responsible for the windows/CodeView/PDB debug info which is motivating some of the ideas about changes to type emission > > So how does this relate, or not, to Peter's (pcc) work trying to reduce the DIE overhead during code gen? Are you folks chasing different memory bottlenecks? Are they both relevant (perhaps in different scenarios)? I think this is orthogonal to Peter's work, although (2) may help DIE overhead, I'm not sure. The primary goal is actually CPU speedup when lazy-loading only a very small number of functions from a module (e.g, a module that gets i...
2009 Aug 24
1
Bottlenecks with my asterisk setup.
Hello. I've been seting up a small VoIP setup, with roughly 5 persons, doing essentially some Meetme conferences. People have been experiencing some quality problems with the sound. Essentially delay, and some tolerable echo. I'd appreciate advice on how to troubleshoot this issue. What could be the most common reasons behind this? Please feel free to ask for more relevant details.
2016 Mar 23
0
[RFC] Lazy-loading of debug info metadata
...39;s responsible for the windows/CodeView/PDB debug info which is > motivating some of the ideas about changes to type emission > > So how does this relate, or not, to Peter's (pcc) work trying to reduce > the DIE overhead during code gen? Are you folks chasing different memory > bottlenecks? Are they both relevant (perhaps in different scenarios)? > > > I think this is orthogonal to Peter's work, although (2) may help DIE > overhead, I'm not sure. The primary goal is actually CPU speedup when > lazy-loading only a very small number of functions from a module (e...