search for: 150mb

Dear all, One of my students (whom I am trying to convince to use R) wants to get a fairly large SAS dataset into R (about 150mB). An obvious and simple thing she tried was to write the dataset as a .csv-file and then read that into R, but that takes forever (or something close to that..). The dataset is so large, that exporting it as an Excel file from SAS is not feasible (more than 65000 lines). I am reluctant to ask her t...

Hi, I got very small app that has user part and admin part. The problem is that after a while the sessions table has ~150mb. I don''t really need to store any user data in the session for the user part. I only need it for the admin part. Can I simply turn session off in controllers from the user part? Are there any drawbacks of turning the session off? Regards --~--~---------~--~----~------------~-------~--~--...

...kes 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 16 secs and an additional 150Mb (56Mb of which is for the object read in). (The overhead of read.table over scan was about 2 secs, mainly in the conversion back to a factor.) loading from .rda format takes 3.4 secs. [R 2.0.1 read in 23 secs using an additional 210Mb, and wrote in 50 secs using an additional 450Mb.] Will Fra...

Is there any documentation available about what block size MEMDISK uses to load (big iso/harddisk) image files? Experimenting with cptime.c32 on a Lexar Triton Jumpdrive (64GB, 170MB/s read in Windows, 150MB/s write in Windows) on bootable USB3.0 resulted in the following, depending on specified block size: * 2048 bytes --> 25MB/s * 2MB --> 61MB/s It would be nice to know at which speed MEMDISK is loading, but a stopwatch seems a bit crude as only method. Bernd

Hola, tengo un problema con la subida de videos al servidor, (tengo apache2 como servidor). Quiero subir un video de unos 150Mb y cuando lo subo en el servidor en modo development me lo sube perfecto pero cuando lo hago en modo produccion no me lo sube y me tira el siguiente error: La conexión fue restablecida La conexión con el servidor http://www.server_name/videos fue restablecida mientras se cargaba la página No entie...

...- so I'm assuming VFS or specific ext3 filesystem is hanging. kernel is 2.2.19pre7 (with openwall patches, although it should not matter), ext3 is 0.05e. All filesystems are ext3 (in journal data mode). Machine is PIII/600 with 128MB RAM, 300MB swap. Journals are 5-15MB in size. Partitions are 150MB to 7,5GB. Feb 5 12:28:28 blue kernel: Buffer locked in journal_write_metadata_buffer, flags 0x00004a0f, count 1 Feb 5 12:28:28 blue kernel: kernel BUG at journal.c:306! Feb 5 12:28:28 blue kernel: invalid operand: 0000 Feb 5 12:28:28 blue kernel: CPU: 0 Feb 5 12:28:28 blue kernel: EIP:...

I have moved from the CentOS 4.4 kernel to a 2.6.16.29 kernel.org kernel due to some vm problems I was having. All has gone well except that my free memory now sits at 150MB. It does not like to go above or below that. Basically, 150MB of the system's memory is wasted. Andi Kleen suggested that I try tuning /proc/sys/vm/lowmem_reserve_ratio. The problem is that lowmem_reserve_ratio appears to be undocumented. Does anyone here happen to know how it works? The...

Adaptec 1210SA with a RAID 0 Intel 815 based mobo 512mb ram During the install, Disk Druid or whatever the partition utility is, sees the first disk but says the other disk is not initialized and only reports 150MB when the array is 300MB. How do I get the CentOS installer to see the RAID 0 array correctly?

...acked NVRAM cards with extremely busy 1.7TB filesystems (mode data=journal) and we need to figure out what size NVRAM card we need. I assume the journal size depends on how much writing you are doing and we can do simple theoretical calculations (writing 2.5MB/s, 60 seconds of journal would be max 150MB), but those numbers are probably off, maybe even completely wrong given the assumption. Is there a way to check to exactly how much of the journal is waiting to be flushed to disk at any given time? Is there a way to get I/O statistics of data in and out of the journal? Honestly, I can't rea...

Hi all, We're experiencing performance issues after migrating from 3.0.8 to 3.0.28. Write performance has degraded about 30%, regardless of the size of file being copied. (tests described below are a single 150Mb file copy from an XP explorer) The setup is somewhat peculiar as the server is mounting NFS shares (v3) and exporting these. smb.conf hasn't changed, save for the addition of "msdfs root = no" Comparing smbd truss output between these version shows a likely culprit : 3.0.28 is doing...

Hi, I have samba-3.0.28a crosscompiled and running on a MIPS platform. The development system has about 150MB of free RAM after system bootup and no swap space. The system also has an USB interface, to which an external USB hard disk is connected. When I try to transfer huge files above (100MB) from a client on to the USB hard disk, I find that the page cache eats up almost about 100MB and occasionally th...

...ell. As I stated earlier in the thread, we have all of the VM image files on one RAID5. Very fast machine. When using top, the load average is a stable "5.xx". No I/O wait. GB's of free memory. Swap has not been touched. Using vmstat, I am writing to the RAID5 volume at a constant 150MB/s and reading at a constant 275MB/s. With all of that said, here are some results from virsh commands: # virsh pool-list --all Name State Autostart ------------------------------------------------------ default active yes # virsh pool-info default Name:...

...resource deallocation, the blue screen stuff occurred at much earlier during the process. Still, XP's Process Monitor shows steady increase in memory usage. My XP has 3GB RAM. It seems that the screen goes blue when the usage goes near 1GB. The database file, when it is corrupted, has only 150MB. SQLite's max db size is 2TB, XP32's max file size is 4GB. So, I'm well under the limits. In the past, when an R process goes out of memory, it rather graceful returned, like "Out of memory". I have closed any other applications that accesses the database such as SQLite Br...

...to manage 3000 Samba Connection. in my network i have 6 Samba File Server.. Volumes Are common in all Samba servers (GPFS Volume + 6 GPFS Nodes) (so 6 Servers are there to share this connection. 500 X 6 ) at a time.. i am getting maximum 3000 samba connection and almost all connection is opening 150MB to 300MB file (3D Animation Files) total opened files will be approximate 800 to 1000 in One Samba Server 6 file servers are named as FS01, FS02, FS03, FS04, Fs05 and FS06 and all the Servers Are Connected to windows2003 ADS So User Permission and Authentication is.. same every where My Point is...

It seems we are hitting a boundary with zfs send/receive over a network link (10Gb/s). We can see peak values of up to 150MB/s, but on average about 40-50MB/s are replicated. This is far away from the bandwidth that a 10Gb link can offer. Is it possible, that ZFS is giving replication a too low priority/throttling it too much?

...g). Ok, the two 72GB drives are set up RAID1, and the four 146GB drives are set up striped, RAID0. The two 72's are on channel 1, and the four 146's are on channel 2. Under CentOS 4 with the hardware RAID running, the four 146's (hardware RAID0) have a raw read performance of abut 150MB/s, which I thought was pretty good. Now, the box has dual 3GHz Xeons (it needs them for the pulsar dedispersion algorithm's FFT's, particularly when we refine it to do dedispersion in real-time). With FC5 installed, and the four 146's running software RAID0, I am getting nearly 2...

...nts as slots are now copied (increasing the memory consumption by more than three fold in my case). The (excessive) duplication (as a simple example shown below demonstrates it) is now enforced (as environments are copied too) !!! > m <- matrix(0, 600^2, 50) ## RSS of the R process is about 150MB > rm(m); gc() used (Mb) gc trigger (Mb) Ncells 364813 9.8 667722 17.9 Vcells 85605 0.7 14858185 113.4 ## RSS is now about 15 MB > library(methods) > setClass("A", representation(a="matrix")) [1] "A" > a <- new("A", a=matrix(...

...size limit). Just after trying to delete messages it is shown (gives me an error message, quota exceeded, since Trash is not excluded from quota limits, for now, I'll exclude it later). This server has some issues: many old users have lots of mails, in thousands (1000-15000). Some have 50mb to 150mb of mails. The migration is part of the cleanup process. --- MY QUESTIONS --- Is it possible that the migration order (creating dirs in that way) is causing the quota usage to be shown wrong? Is it possible that the amount of messages and the size can be the cause? Misconfiguration? Other cau...

...weeks without the fragmentation patch. Our SAN was becoming so fragmented that we were only getting 10% of normal throughput. Since we've applied this patch our SAN is continuously getting maximum throughput. Benchmarks are numbers such as 10MB/sec throughput due to fragmentation versus 90MB-150MB without fragmentation (numbers reported by telnet sessions to the SAN device). Fragmentation decreases are very significant. We see most files now created without any fragmentation (single fragment reported by sysinternals contig utility) whereas prior to the patch the same files were containi...

Hello zfs-discuss, Is someone actually working on it? Or any other algorithms? Any dates? -- Best regards, Robert mailto:rmilkowski at task.gda.pl http://milek.blogspot.com