search for: sequential

...ith the Linux "RAID50" and "RAID60", I created two RAID5 and RAID6 arrays, respectively, then create a RAID0 array over the top of them. For "RAID10" I used the ''builtin'' RAID10.) Single drive bonnie++ -d /mnt/ -s 8g -u0 -f Version 1.03 ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP csmith-desktop 8G 42807 21 25278 7 65191 6 118.4 0...

Hi R-Masters I need use a sequential approach in serie of cases, but may data is not normal. If data is normal distribution is very easy create analysis using likelihood ratio like of Wald test. But in my case I need use a non-parametric test (Mann-Whitney). I was use: RSiteSearch("sequential rank test") but not solve m...

...se numbers as well (but see my other email of a few minutes ago as to how this might be removed altogether.) Anyway, I had the same headache with Cisco access lists many, many years ago when I was learning those syntaxes. Then I discovered that those access lists didn't have to be exactly sequential; they could simply be generally sequential, meaning that instead of 1 followed by 2 followed by 3, they could be 10 followed by 20 followed by 30. Then, when I wanted to insert something between 10 and 20, I would simply call it "15" and it would Just Work. Granted, that only left m...

...s are always marginal (cf. Pinheiro and Bates 2000, pp. 90-91). I would also encourage you to focus more on your estimates (the Value column) and less on p-values. All that said, it seems you only care about the significance of model terms and not the estimates, so there are two possibilities for sequential tests: 1. Nested model comparison (likelihood-ratio test) with either the anova() function or drop1(model,test='Chisq') 2. use the p-values from the ANOVA results (see Pinheiro and Bates 2000, pp. 90-91, for some notes on which test is preferred as well as the GLMM FAQ: https://bbolker.g...

...e's the results from bonnie: File './Bonnie.2551', size: 104857600 Writing with putc()...done Rewriting...done Writing intelligently...done Reading with getc()...done Reading intelligently...done Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done... -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 100 9989 4.8 6739 1.0 18900 7.8 225973 98.5 1914662 99.9 177210.7 259.7 Any i...

(This time with the r-help in the recipients...) Be careful when mixing lme4 and lmerTest together -- lmerTest extends and changes the behavior of various lme4 functions. >From the help page for lme4-anova (?lme4::anova.merMod) > ?anova?: returns the sequential decomposition of the contributions > of fixed-effects terms or, for multiple arguments, model > comparison statistics. For objects of class ?lmerMod? the > default behavior is to refit the models with ML if fitted > with ?REML = TRUE?, this can b...

I''ve been looking into the performance impact of NCQ. Here''s what i found out: http://blogs.sun.com/erickustarz/entry/ncq_performance_analysis Curiously, there''s not too much performance data on NCQ available via a google search ... enjoy, eric

...ngle.NA=FALSE), + identical(m, m0), !identical(m, m0, attrib.as.set=FALSE) ) Error: !identical(0, -0, num.eq = FALSE) is not TRUE Execution halted ******END OF EXCERPT****** I configured the R build with ./configure --prefix=/usr/local/packages/R/builds/2.14.1 --with-blas="-mkl=sequential" --with-lapack="-mkl=sequential" CC=icc CFLAGS="-O3 -mkl=sequential" F77=ifort FFLAGS="-O3 -mkl=sequential" CXX=icpc CXXFLAGS="-O3 -mkl=sequential" FC=ifort FCFLAGS="-O3 -mkl=sequential" LDFLAGS="-O3 -mkl=sequential" I also tried...

...n once. 8GB should be far more then the 1GB of RAM that the system has, eliminating caching issues. If I''ve still managed to overlook something in my testing setup, please let me know - I sure did try! Sorry about the formatting - this is bound to end up ugly Bonnie -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- raid0 MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 8 disk 8196 78636 93.0 261804 64.2 125585 25.6 72160 95.3 246172 19.1 286.0 2.0 8 disk 8...

...ations such as NFS. For these tests I created a 256MB partition in the mirrored disk set for the log device: /dev/sdb6. The RAID5 volume is a 500GB partition: /dev/sda1. Here is a summary of the results: Log location: - log location does not affect the file system performance as measured by the sequential output and sequential input tests - random seek rate improves with an external log (25%) - log location affects the random create "create" test results and has a massive impact on the random create "read" and "delete" test results Data journaling: - data journaling do...

if you have N processes reading the same file sequentially (where file size is much greater than physical memory) from the same starting position, should I expect that all N processes finish in the same time as if it were a single process? In other words, if you have one process that reads blocks from a file, is it "free" (meaning no additiona...

...I started with a 32 GB file of random data on a machine with about 32 GB of RAM. At the beginning of the test I evicted the file from the page cache: $ cachedel /var/tmp/random $ cachestats /var/tmp/random pages in cache: 0/8388608 (0.0%) [filesize=33554432.0K, pagesize=4K] Performing a normal sequential copy of the file to /dev/null shows that the file is almost entirely pulled into page cache (thus evicting useful programs and data): $ free -m; time ./nbdkit file /var/tmp/random --run 'qemu-img convert -n -p -m 16 -W $nbd "json:{\"file.driver\":\"null-co\",\"fil...

...o minitab, performed what minitab called a General Linear Model (I have to use this in minitab as I have an unbalanced data set) and got a different result. After a little mining this is because minitab, by default, uses the type III adjusted SS. Sure enough, if I changed minitab to use the type I sequential SS, I get exactly the same results as aov() and lm() in R. So which should I use? Type I adjusted SS or Type III sequential SS? Minitab help tells me that I would "usually" want to use type III adjusted SS, as type I sequential "sums of squares can differ when your design is unb...

...EXT3 and XFS seems to had better or equivalent performance on Read and Create Random files. One of this tests, using bonnie++, show this:<br> <br> # bonnie++ -d /mnt/sdc1/testfile -s 8192 -m `hostname` -n 50:150000:5000:1000<br> <br> XFS:<br> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-<br> -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--<br> Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP<br> localhost 8G 74048 99 201584 32 74014 12 61610 92 2289...

Instead of using sequential integers for IDs for my objects I was wondering if I could easily make it so that my IDs where longer auto- generated random strings/integers. So instead of: http://www.mydomain.com/user/view/1 Would be: http://www.mydomain.com/user/view/d81096b87a7c5565f On top of that... is there big benef...

I wantto run sequential ANOVAs (i.e. type I sums of squares), and trying to getresults including ANOVA tables and associated coefficients for predictive variables(I am using the R 3.4.2 version). I think ANOVA tables look right, but believecoefficients are wrong. Specifically, it looks like that the coefficients arefrom A...

...dom data on a machine with about 32 GB of RAM. At the > beginning of the test I evicted the file from the page cache: > > $ cachedel /var/tmp/random > $ cachestats /var/tmp/random > pages in cache: 0/8388608 (0.0%) [filesize=33554432.0K, pagesize=4K] > > Performing a normal sequential copy of the file to /dev/null shows > that the file is almost entirely pulled into page cache (thus evicting > useful programs and data): > > $ free -m; time ./nbdkit file /var/tmp/random --run 'qemu-img convert -n -p -m 16 -W $nbd "json:{\"file.driver\":\"null-...

[my original message to s-news & r-help is attached ] No one possessed or knew of any S/R code for the sequential t-test. Also it doesn't appear in the SAS index. One or two suggested obtaining the S+ seqtrial software which may (or may not) cover this, but this seemed to be a bit of a "hammer to crack a nut". I have written a function based on the treatment in Wetheril and Glazebrook ...

My unit's firmware: library 05.03, tape d22h, shows the device as set to random mode. But mtx -f /dev/st0 status gives an error that google says the device is in sequential mode. dmesg|grep -i hp does reflect CentOS thinks the device is a sequential unit. I've tried this with Fedora 8, too, and both show the same, so it is either an issue with CentOS/Fedora RPMs, or the version of MTX? I'm going to try a simple install of Ubuntu next and see if there is a...

Just starting to learn R so excuse me if this is a simple question. I'm wondering how I get the percent difference in sequential values in one column of a dataframe. If I had a dataframe and one of the columns was "value", how would I go about calculating (v2-v1)/v1 ....(v3-v2)/v2 ....(v4-v3)/v3 ...etc ? -- View this message in context: http://r.789695.n4.nabble.com/How-do-I-subtract-sequential-values-tp3063019p3...