search for: cow

Displaying 20 results from an estimated 814 matches for "cow".

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2018 Jan 20
0
[PATCH nbdkit] filters: Add copy-on-write filter.
--- configure.ac | 5 + filters/Makefile.am | 4 + filters/cow/Makefile.am | 65 +++++++ filters/cow/cow.c | 392 ++++++++++++++++++++++++++++++++++++++ filters/cow/nbdkit-cow-filter.pod | 162 ++++++++++++++++ tests/Makefile.am | 6 + tests/test-cow.sh | 98 ++++++++++ 7 files changed, 732 insertio...
2018 Jan 20
4
[PATCH nbdkit] filters: Add copy-on-write filter.
Eric, you'll probably find the design "interesting" ... It does work, for me at least. Rich.
2006 Jul 02
2
:include breaks has_many :order
It would appear that using :include on a model that has_many with an :order on another model makes it so that the order is ignored. Is this supposed to happen? Strikes me as odd behavior. For example class Farmer < ActiveRecord::Base has_many :cows, :order => ''position'' end class Cow < ActiveRecord::Base acts_as_list :scope => :farmer end If I do Farmer.find(:first).cows I get the correct cow order. If I do Farmer.find(:first, :include => ''cows'') then I get the wrong cow order. Any in...
2019 May 16
0
[nbdkit PATCH 2/2] cache, cow: Round size down
The blocksize filter already rounds sizes down, to avoid having to special-case a partial action at the end of an unaligned file. But our current behavior for cache and cow is not similarly careful, and can end up causing errors by passing a too-large count to the plugin. The bulk of our plugins are somewhat safe, in that they either fail the pread (for example, the file plugin gets a short read due to EOF) or populate the tail of the buffer with other data (which the...
2006 Apr 04
2
xyplot: getting data into the panel function
In xyplot, I would like to get the "data into the panel function" in the following sense: Consider xyplot(scc~time|cowidp, data=cow.s,type=c("l"), panel=function(x,y,subscripts,...){ panel.xyplot(x,y,...) vvv<-cow.s[which(!is.na(cow.s[subscripts,"mastreat"])),"time"] panel.abline(v=vvv,col="red",lwd=2) } ) If I want to use a different dataset, say cow.2,...
2019 Mar 26
0
[PATCH nbdkit v4 05/15] cow: Disable extents information in this filter.
The cow filter doesn't support trimming and we should assume the underlying plugin is fully allocated too. Note that both of these limitations might be lifted with a more advanced filter implementation. However we ought to support this in future because xz files contain sparseness information, so add...
2006 Jan 01
3
Single Table inheitance doesn''t show subclasses ?
Hi, I am a Rails noob. Suppose you have: --- class Animal < ActiveRecord::Base end class Mammal < Animal end class Cow < Mammal end --- I provide Animal,Mammal and Cow controllers with the scaffolding, just to test and to fill up the Animal table. I can see the "type" column getting it''s value set with the class name. So far, soo good. Now, since listing Animals is showing all animals in t...
2018 Jan 21
2
Re: [PATCH nbdkit] filters: Add copy-on-write filter.
...ing and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org --4VrXvz3cwkc87Wze Content-Type: text/plain; charset=utf-8 Content-Disposition: attachment; filename="0001-filters-cow-Modify-cow-filter-to-use-a-bitmap.patch" Content-Transfer-Encoding: 8bit >From e9f7ff5ea68f2a0391a3319cef1bf9e3f5581942 Mon Sep 17 00:00:00 2001 From: "Richard W.M. Jones" <rjones@redhat.com> Date: Sun, 21 Jan 2018 21:52:26 +0000 Subject: [PATCH] filters: cow: Modify cow fi...
2013 Jun 07
2
How do I safely terminate COW on pre-existing files?
I want to eliminate the COW feature on all of my OS files. It is a nice feature for user files, but I don''t see a clear benefit for the actual OS files. And I suspect that COW induced fragmentation is causing or aggravating problems with my system including the boot open_ctree problem. I had planned to recursi...
2006 Oct 04
2
cow by default?
Hi David, --use-cow seems to be quite stable on all variations of tfp (xgl, aiglx, nvidia), I think it was the plan to default-enable it. Do you think it's ready for that? Want a patch? -- Hanno B?ck Blog: http://www.hboeck.de/ GPG: 3DBD3B20 Jabber: jabber@hboeck.de -------------- next part --------------...
2019 May 16
3
[nbdkit PATCH 0/2] Avoid oddities with files unaligned to granularity
...n are difficult to access correctly. Rather than duplicating lots of code already in the truncate filter, it's easier to just make the other filters default to rounding down and add doc links on how to round up instead. Eric Blake (2): blocksize: Lift restriction against 0-size file cache, cow: Round size down filters/blocksize/nbdkit-blocksize-filter.pod | 15 +++++++++--- filters/cache/nbdkit-cache-filter.pod | 9 +++++++- filters/cow/nbdkit-cow-filter.pod | 8 +++++++ filters/truncate/nbdkit-truncate-filter.pod | 9 ++++++++ filters/blocksize/blocksize.c...
2018 Sep 17
0
[PATCH nbdkit v2] common: Introduce round up, down; and divide round up functions.
...are used at various places in the code already. This refactoring simply moves them to a common header file and should have no other effect. --- common/include/rounding.h | 59 +++++++++++++++++++++++++++++++++++++ filters/cache/Makefile.am | 3 +- filters/cache/cache.c | 2 +- filters/cow/Makefile.am | 3 +- filters/cow/cow.c | 2 +- filters/truncate/truncate.c | 5 ++-- 6 files changed, 68 insertions(+), 6 deletions(-) diff --git a/common/include/rounding.h b/common/include/rounding.h new file mode 100644 index 0000000..b176fc3 --- /dev/null +++ b/common/include/r...
2006 Apr 06
1
polynomial predict with lme
Does lme prediction work correctly with poly() terms? In the following simulated example, the predictions are wildly off. Or am I doing something daft? Milk yield for five cows is measured weekly for 45 weeks. Yield is simulated as cubic function of weekno + random cow effect (on intercept) + residual error. I want to recover an estimate of the fixed curve. ############### library(nlme) set.seed(1) ncows <- 5; nweeks <- 45; week <- 1:nweeks mcurve <- 25 + 0....
2018 Sep 17
2
[PATCH nbdkit v2] common: Introduce round up, down; and divide round
Since we're using ({ .. }) gcc/clang extension, let's rewrite the rounding.h change too. Rich.
2011 Jan 16
4
persistence by reachability
Hello guys, I have these models class Farmer < ActiveRecord::Base has_many :cows end class Cow < ActiveRecord::Base set_table_name :cows belongs_to :farmer end ... graph = Farmer.find(x) # Retrieves four cows of x graph.cows[1].name = "Trottolina" graph.save while adding a new cow to collection works perfectly fine, ActiveRecord doesn'&...
2018 Jan 26
2
[PATCH nbdkit] filters: cache, cow: Handle bitmap overflow on 32 bit architectures.
...in virtual memory, so use size_t to describe the length of the bitmap. When changing the length of the bitmap, compute the new size as an unsigned 64 bit int, and then check whether or not it is too large to fit into size_t before casting it. --- filters/cache/cache.c | 13 ++++++++++--- filters/cow/cow.c | 13 ++++++++++--- 2 files changed, 20 insertions(+), 6 deletions(-) diff --git a/filters/cache/cache.c b/filters/cache/cache.c index 7410f0d..9473f2c 100644 --- a/filters/cache/cache.c +++ b/filters/cache/cache.c @@ -72,7 +72,7 @@ static int fd = -1; static uint8_t *bitmap; /* Size...
2004 Jun 06
2
Repeated measures
Dear R-gurus, I am pretty much new on R. I am trying to to do a repeated analysis of a linear mixed model with R, and I consistently fail... The problem is: Cow is the random factor, treatment is the fixed factor. The dependent variable is milk yield, which is measured several times (repeatedly over time), thus there is another variable which is time (i.e. week). The model would be something like this: milk yield = cow + treatment + time + treatment*t...
2019 Sep 15
2
[PATCH nbdkit v2] common/bitmap: Don't fail on realloc (ptr, 0)
v1 was here: https://www.redhat.com/archives/libguestfs/2019-September/msg00100.html In v2 I've changed the patch so it avoids calling realloc at all in this case. The patch is a bit longer this way. But I don't see any other alternative if we are to avoid having a "realloc wrapper" of some kind that we use everywhere, which I guess we should avoid because it makes plugins
2019 Sep 15
0
[PATCH nbdkit v2] common/bitmap: Don't fail on realloc (ptr, 0)
The following commands: nbdkit -fv --filter=cow memory size=512 --run 'qemu-img info $nbd' nbdkit -fv --filter=cache memory size=512 --run 'qemu-img info $nbd' nbdkit -fv --filter=cow null --run 'qemu-img info $nbd' all fail with: nbdkit: memory[1]: error: realloc: Success Initial git bisect pointed to commit 316...
2005 Jun 30
1
Nolinear mixed-effects models (nlme)
Hello, I am trying to fit a nonlinear model of the form of: A*x^b*exp(-c*x) This represents a lactation curve. I have a bunch of cows, so I want COW to be a random effect. I have been trying the following code with very littel success: > fm1 <- nlme(yield ~ A*(DIM^B)*(exp(-C*DIM)), + data = group, + fixed = A + B + C ~ 1, + start = c(A = 20, B = 0.3, C = 0.03)) Does anyone know how...