similar to: lots of disk activity keep process from responding

Is there anyway to set dynamically set dhcp options when chain loading another pxe boot loader? I'm setting up a pxelinux network install server and one operating system I want to support is freebsd. Freebsd has its own pxe loader called pxeboot that you can use. You just have to boot it from tftp and set the root-path dhcp option (option 17) to the location of your nfs server with the

Hi Everyone, I''m experimenting with ionice, and I have to say at first impressions I''m very impressed! Does anyone have any idea how I could script the ionice config? I''m using phy for my DomUs so everything appears in ps as blkback.<DOMID>.xvda1 The problem is, is that the process id for the blkback process will change after every DomU restart,

Hey, anyone has some successful experience with ionice? I tried it with 'idle' (-c 3) parameter. When I did a quick test (find /), it seemed to work with frequent pauses (I guess waiting for idle). But when I used it on my big tar, it made it worse than without... which seems counter-intuitive. Thx, JD

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Hi, I need to rsync a remote live server to a local backup machine. The local backup machine is starting the rsync on scheduled basis (ie pulling from the remote) and I would like it to reduce the load on the remote live server by using nice/ionice at the far end. I'm connecting to the remote machine with ssh How can I get the remote server to be running it's part of the chain

Is there a way to nice the IO on a process such as dd? If not, what could be a way to control the IO level of such a process from bogging down a server to severely. Thanks, jlc

How can I slow down dd? I don't want to slow down the pc, when generating a big file [~40 GByte]. Does ionice work properly? Thank you for any help! :\

Dear All I have problem about calculte variance use R. I use trimm mean by mean(x, trim=.05) and I want to calculate variance with trimm=.05. How I can do this. Many Thanks. Jumlong -- Jumlong Vongprasert Assist, Prof. Institute of Research and Development Ubon Ratchathani Rajabhat University Ubon Ratchathani THAILAND 34000 [[alternative HTML version deleted]]

Dear List, We have noticed a variety of reproducible conditions working with sparse files on multiple servers under load with CentOS 6.4. The short story is that processes that read / write sparse files with large "holes" can generate an IO storm. Oddly, this only happens with holes and not with the sections of the files that contain data. We have seen extremely high IO load for

Hi, I created a simple data frame with one factor and one numerical variable. The factor was actually a vector of names of techniques to trimm reaction time data. I want to create a plot that shows the value of F test for every trimming method. So the data frame has its trim factor (who has those labels

Hello - frequently I turn on my external USB 3.0 disk and back. While my machine is copying and backing up my desktop becomes very sluggish. Is there a way to change that ? I am using CentOS 7.5 x86 with a very nice processor extra cores available and plenty of memory. There is no reason the "other" cores cannot keep the desktop going. Thanks, Jerry

Hello, I''ve seen from time to time where a domU using heavy disk I/O can slow down an entire server (including all other domU''s and dom0). Is there a way to schedule or limit this in Xen 3.0.3? Thank you, Brian ** _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hello everyone. I'm wondering what other people's experiences are WRT systems becoming unresponsive (unable to ssh in, etc) for brief periods of time when a large amount of IO is being performed. It's really starting to cause a problem for us. We're on Dell PowerEdge 1955 blades - but this same issue has caused us problems on PE1950, PE1850, PE1750 servers. We're running

Hi There, I've moved some Windows2012 with MSSQL VMs from an hold ESXi 5.5 machine to a more recent and powerful machine running Fedora 24 x86_64 and related libvirt + KVM virtualization. I've moved the VMs filesystem to LVM slices and installed the VirtIO drivers in to all Windows VMs. I've also set both Disk and Network interface to work using VirtIO. So far so good everything works

Hi all. We just put a relative large server in operation (for our measures ;-) ), a 4x Dual Core / Intel with 16GB Ram and a 3ware 9550SX SATA-RAID with 4 drives. Operating system for the Dom0 is an up-to-date gentoo linux. Everything runs really fine, there are 4 Domu''s running, 1x gentoo and 2x debian and 1x Windows Server 2003. DomU''s are running blazing fast in normal

Package: logcheck Version: 1.2.69 Severity: normal logcheck is a "batchy" job, but currently runs at normal I/O priority, and is hard-coded to run with a niceness of 10. As a result logcheck can degrade interactive performance on machines with a lot of log traffic, relatively slow CPU or expensive I/O. It'd be useful if the "ionice" and "schedtool" utilities

Hello, I found a strange problem with allocationg big files on drive. For example in guestfish I allocate large disk image for example: $ guestfish ><fs> allocate test.img 20G When an image allocating, there is a big slowdown of guest OSes, launched on host machine, and on different drives. For Linux guests with virtio drivers, there is no so big performance penalty, but for FreeBSD

Hello, I found a strange problem with allocationg big files on drive. For example in guestfish I allocate large disk image for example: $ guestfish ><fs> allocate test.img 20G When an image allocating, there is a big slowdown of guest OSes, launched on host machine, and on different drives. For Linux guests with virtio drivers, there is no so big performance penalty, but for FreeBSD

https://bugzilla.samba.org/show_bug.cgi?id=7876 Summary: please implement o_direct Product: rsync Version: 3.1.0 Platform: Other OS/Version: Linux Status: NEW Severity: normal Priority: P3 Component: core AssignedTo: wayned at samba.org ReportedBy: costinel at gmail.com QAContact:

Hello, I am trying to find a direct way to write a nested if of sorts to find data for a specific time range for a specific day (across a range of days) and have exhausted my abilities with the manuals I have at hand. I have a good deal of data of this approximate form: day time price 1 1am 5 1 2am 7 1 3am 9 1 4am 12 2 1am 5 2 2am 7 2