Hi Paweł -
this is fixed in master and the rel_0_7 branch. I should be releasing
today.
- mike
On 7/22/15 6:10 AM, Paweł Piotr Przeradowski wrote:
Hi,
Thanks for reply. It completes with correct results. I am gonna send
you a stripped version of scrips in a private message.
Pawel.
On Tuesday, 21 July 2015 18:06:59 UTC+2, Michael Bayer wrote:
On 7/21/15 7:32 AM, Paweł Piotr Przeradowski wrote:
Hi,
First of all thanks for alembic which is great asset to have in
your development toolbelt.
I am experiencing large slowdowns when generating offline or
doing online migrations or even generating history. One of the
CPU cores stays at 100% for a large number of seconds.
|
I have 141migrations
32branchpoints and40merges
|
The hardware is:
|
Intel®Core™i7-4510UCPU @2.00GHz×4
with8GB of RAM
|
Each time I do a merge the time seems to grows. It looks to me
that alembic spends a lot of time calculating some dependency
tree. Some timings on commands *minutes:seconds*:
|
alembic history 1:31.57total
|
|
|
|
alembic downgrade head:325b273d61bd--sql 1:24.10total // |This
just targets one migration|
|
Is this a known problem? Any way I can speed it up?
not known at all, and it is likely a bug in the algorithm, but
it's very weird that it comes up with an answer, rather than just
going into a recursion overflow. it comes up with the right
answer? can you supply your full migration script structure in a
.tar.gz archive ? Just the scripts with the headers in them, I
don't need the "upgrade()" or "downgrade()" methods to be filled
in. thanks.
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