search for: 56mb

R-devel now has some improved versions of read.table and write.table. For a million-row data frame containing one number, one factor with few levels and one logical column, a 56Mb object. generating it takes 4.5 secs. calling summary() on it takes 2.2 secs. writing it takes 8 secs and an additional 10Mb. saving it in .rda format takes 4 secs. reading it naively takes 28 secs and an additional 240Mb reading it carefully (using nrows, colClasses and comment.char) takes 1...

...s to avoid looking up the checksum from the csum tree. But we didn''t filter out the ordered extents whose csum is still being calculated, when we got those ordered extents, we had to wait for the csum calculation. It made the performance dropped down suddenly. (On my box, it drop down from 56MB/s to 4-10MB/s) But actually, the csum calculation of the ordered extents which were introduced by the current fsync had already completed. Those ordered extents whose csum was being calculated didn''t belong to the current fsync, we can ignore them. By this patch, the performance fluctuat...

...would think it fairly obvious that it wasn't deliberate or obvious to me... or a big deal really. My mail doesn't thread. Some further info for those actually interested in helping, I forgot that the HD in question had an Ubuntu 8.10 install on it, so I fired that up and hdparm -t produced 56MB/Sec. So the issue is either kernel or config. Thanks for your patience. ----- Forwarded Message ---- I have a system who's normal activity is running Xen 3.3.1 with Centos 5.3 as the DomU. I had reason to connect an IDE drive to the single IDE interface that this board has. I was getting...

...0 17:47 1-Spam-l -rw------- 1 stan stan 6.7M May 10 17:45 1-XFS -rw------- 1 stan stan 18M May 10 16:32 SpamTrap Is there any reason we have a fixed ceiling on the size of an mbox sieve will write to? Man this is disappointing. What is the ceiling? It appears to be somewhere between 30MB and 56MB as writes to 1-Postfix-Users are successful but writes to 1-Spam-l fail. Is there a fix/patch for this? Thanks. -- Stan

yea, well i loged it ... but that did you give me a 56MB huge file .. and no direct hints... only the one i did allready past : ---- fixme:dsound:IDirectSoundBufferImpl_QueryInterface {279afa86-4981-11ce-a521-0020af0be560}: I know about this GUID, but don't support it yet ---- HL tells me : can'T open wave input ... so the programm shiped wi...

...em("ls -l big.csv") system("free -m") big1<-matrix(scan("big.csv",sep=",",what=character(0),skip=1,n=1e6),ncol=10,byrow=TRUE) system("free -m") The file is approximately 9MB, but approximately 50-60MB is used to read it in. object.size(big1) is 56MB, or 56 bytes per string, which seems excessive. Regards, Mike Configuration info: > sessionInfo() R version 2.5.1 (2007-06-27) x86_64-redhat-linux-gnu locale: C attached base packages: [1] "stats" "graphics" "grDevices" "utils" "datasets&qu...

On Fri, Aug 03, 2018 at 04:32:26PM +0800, Wei Wang wrote: > The OOM notifier is getting deprecated to use for the reasons: > - As a callout from the oom context, it is too subtle and easy to > generate bugs and corner cases which are hard to track; > - It is called too late (after the reclaiming has been performed). > Drivers with large amuont of reclaimable memory is expected

...snv_124 * eon-0.594-124-64-smb.iso * MD5: 80af8b288194377f13706572f7b174b3 * Size: ~102Mb * Released: Monday 19-October-2009 tryitEON 32-bit x86 CIFS ISO image version 0.59.4 based on snv_124 * eon-0.594-124-32-cifs.iso * MD5: dcc6f8cb35719950a6d4320aa5925d22 * Size: ~56Mb * Released: Monday 19-October-2009 tryitEON 32-bit x86 Samba ISO image version 0.59.4 based on snv_124 * eon-0.594-124-32-smb.iso * MD5: 3d6debd4595c1beb7ebbb68ca30b7391 * Size: ~69Mb * Released: Monday 19-October-2009 New/Changes/Fixes: - ntpd and nscd starting moved to /mnt...

...(e.g. rsync --newer "15/03/05 21:22:00" -a dir1 dir2) That would really make my day when transferring daily cumulative sql changelogs and not having to keep older ones. E.G: changelog-200502-09.sql 100Mb changelog-200503-01.sql 100Mb changelog-200503-02.sql 100Mb changelog-200503-03.sql 56Mb (and growing) The first 3 files were transferred, applied to the backup database and deleted. The third file is then partially transferred until it reaches 100Mb. There's no way however to just rsync files newer than changelog-03.sql (when they are added), I also dont have the disk space to ke...

Dear List, I have some projects where I use enormous datasets. For instance, the 5% PUMS microdata from the Census Bureau. After deleting cases I may have a dataset with 7 million+ rows and 50+ columns. Will R handle a datafile of this size? If so, how? Thank you in advance, Tom Volscho ************************************ Thomas W. Volscho Graduate Student Dept. of Sociology U-2068

I was trying to simply test bandwidth that Solaris/ZFS (Nevada b63) can deliver from a drive, and doing this: dd if=(raw disk) of=/dev/null gives me around 80MB/s, while dd if=(file on ZFS) of=/dev/null gives me only 35MB/s!?. I am getting basically the same result whether it is single zfs drive, mirror or a stripe (I am testing with two Seagate 7200.10 320G drives hanging off the same interface

I know that Zed has made mention of the fact that using RMagick with mongrel and rails is a bad thing. I''m currently using FlexImage (which in turn uses RMagick) on my application and really haven''t had too many problems. We get a restart for memory usage every 8-10 hours on one mongrel of twelve running, but I''m not sure if that''s an RMagick issue. Either way,

...pensshd 3.0.2p1 server is used in all tests. Software: openssh suite 3.0.2p1 psftp (putty sftp client) latest dev snapshot pscp (putty scp client) latest dev snapshot winscp 2.0 beta cygwin 1.3.6 windows xp Localhost (client/server on same box) opensftp - 5.5MB/min putty sftp - 6MB/min open scp - 56MB/min winscp2 - 95MB/min putty scp - 280MB/min windows copy - 780MB/min (11 sec) 10mbit LAN (same binaries, both xp machines) putty sftp - 1.2MB/min opensftp - 3.9MB/min winscp2 - 9MB/min open scp - 50MB/min putty scp - 65MB/min windows network copy - 68MB/min I should also add that these machines...

Following is the output of top command at my server and i find the high usage very much alarming. We are basically a team of three developers working on same machine(remotely), so we run mongrel_rails servers from out ~/public/app directories. We also run a cluster of mongrel servers using apache2.2. Is this much memory use normal? PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+