[Qemu-devel] [PATCH v3 0/3] Travis updates

[Qemu-devel] [PATCH v3 0/3] Travis updates

[Alex Bennée]

Hi,

The first patch has been reviewed and signed off. Long term I think
it is worth applying but it look like the performance increase it
negligible compared to the old style VM builds at the moment. I
suspect this may be because the new infrastructure is under more load
as more projects have migrated.

The remaining two patches widen the testing of the code.

The first making "make check" standard for all builds unless
explicitly disabled. This reverts an original patch that moved it all
to one build while we were experiencing instability in "make check".

The second add some supplemental builds to the matrix for additional
co-routine builds. I've disabled "make check" for the gthread option
as it is current broken.

Is everyone happy for these to go in via the trivial tree?

Alex Bennée (3):
  .travis.yml: migrate to container builds
  .travis.yml: run make check for all matrix targets
  .travis.yml: enable each of the co-routine backends

 .travis.yml | 72 +++++++++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 53 insertions(+), 19 deletions(-)

-- 
2.7.0

[Qemu-devel] [PATCH v3 1/3] .travis.yml: migrate to container builds

[Alex Bennée]

This moves the Travis tests from the legacy VM infrastructure (which
only seems to run 5-6 jobs at once) to the new container based approach.

The principle difference is there is no sudo in the containers so all
packages are installed using the apt add-on. This means one of the build
combinations can be dropped as it was only for checking the build with
additional packages.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

--
v2
  - re-enabled the user-space-tracing build
  - disable optional extras (instead of having optional build)
  - remove stray linux-user target from make check target
v3
  - Add Dave's t-b and rb tags
---
 .travis.yml | 44 ++++++++++++++++++++++++++++++++------------
 1 file changed, 32 insertions(+), 12 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 6ca0260..4a0c23a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,37 @@
+sudo: false
 language: c
 python:
   - "2.4"
 compiler:
   - gcc
   - clang
+addons:
+  apt:
+    packages:
+      - libaio-dev
+      - libattr1-dev
+      - libbrlapi-dev
+      - libcap-ng-dev
+      - libgnutls-dev
+      - libgtk-3-dev
+      - libiscsi-dev
+      - liblttng-ust-dev
+      - libncurses5-dev
+      - libnss3-dev
+      - libpixman-1-dev
+      - libpng12-dev
+      - librados-dev
+      - libsdl1.2-dev
+      - libseccomp-dev
+      - libspice-protocol-dev
+      - libspice-server-dev
+      - libssh2-1-dev
+      - liburcu-dev
+      - libusb-1.0-0-dev
+      - libvte-2.90-dev
+      - sparse
+      - uuid-dev
+
 notifications:
   irc:
     channels:
@@ -14,11 +42,6 @@ env:
   global:
     - TEST_CMD=""
     - EXTRA_CONFIG=""
-    # Development packages, EXTRA_PKGS saved for additional builds
-    - CORE_PKGS="libusb-1.0-0-dev libiscsi-dev librados-dev libncurses5-dev"
-    - NET_PKGS="libseccomp-dev libgnutls-dev libssh2-1-dev  libspice-server-dev libspice-protocol-dev libnss3-dev"
-    - GUI_PKGS="libgtk-3-dev libvte-2.90-dev libsdl1.2-dev libpng12-dev libpixman-1-dev"
-    - EXTRA_PKGS=""
   matrix:
     # Group major targets together with their linux-user counterparts
     - TARGETS=alpha-softmmu,alpha-linux-user
@@ -43,8 +66,6 @@ git:
 before_install:
   - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
   - git submodule update --init --recursive
-  - sudo apt-get update -qq
-  - sudo apt-get install -qq ${CORE_PKGS} ${NET_PKGS} ${GUI_PKGS} ${EXTRA_PKGS}
 before_script:
   - ./configure --target-list=${TARGETS} --enable-debug-tcg ${EXTRA_CONFIG}
 script:
@@ -54,7 +75,7 @@ matrix:
   include:
     # Make check target (we only do this once)
     - env:
-        - TARGETS=alpha-softmmu,arm-softmmu,aarch64-softmmu,cris-softmmu,i386-softmmu,x86_64-softmmu,m68k-softmmu,microblaze-softmmu,microblazeel-softmmu,mips-softmmu,mips64-softmmu,mips64el-softmmu,mipsel-softmmu,or32-softmmu,ppc-softmmu,ppc64-softmmu,ppcemb-softmmu,s390x-softmmu,sh4-softmmu,sh4eb-softmmu,sparc-softmmu,sparc64-softmmu,unicore32-softmmu,unicore32-linux-user,lm32-softmmu,moxie-softmmu,tricore-softmmu,xtensa-softmmu,xtensaeb-softmmu
+        - TARGETS=alpha-softmmu,arm-softmmu,aarch64-softmmu,cris-softmmu,i386-softmmu,x86_64-softmmu,m68k-softmmu,microblaze-softmmu,microblazeel-softmmu,mips-softmmu,mips64-softmmu,mips64el-softmmu,mipsel-softmmu,or32-softmmu,ppc-softmmu,ppc64-softmmu,ppcemb-softmmu,s390x-softmmu,sh4-softmmu,sh4eb-softmmu,sparc-softmmu,sparc64-softmmu,unicore32-softmmu,lm32-softmmu,moxie-softmmu,tricore-softmmu,xtensa-softmmu,xtensaeb-softmmu
           TEST_CMD="make check"
       compiler: gcc
     # Debug related options
@@ -64,16 +85,16 @@ matrix:
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-debug --enable-tcg-interpreter"
       compiler: gcc
-    # All the extra -dev packages
+    # Disable a few of the optional features
     - env: TARGETS=i386-softmmu,x86_64-softmmu
-           EXTRA_PKGS="libaio-dev libcap-ng-dev libattr1-dev libbrlapi-dev uuid-dev libusb-1.0.0-dev"
+           EXTRA_CONFIG="--disable-linux-aio --disable-cap-ng --disable-attr --disable-brlapi --disable-uuid --disable-libusb"
       compiler: gcc
     # Currently configure doesn't force --disable-pie
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-gprof --enable-gcov --disable-pie"
       compiler: gcc
+    # Sparse
     - env: TARGETS=i386-softmmu,x86_64-softmmu
-           EXTRA_PKGS="sparse"
            EXTRA_CONFIG="--enable-sparse"
       compiler: gcc
     # All the trace backends (apart from dtrace)
@@ -87,7 +108,6 @@ matrix:
            EXTRA_CONFIG="--enable-trace-backends=ftrace"
       compiler: gcc
     - env: TARGETS=i386-softmmu,x86_64-softmmu
-          EXTRA_PKGS="liblttng-ust-dev liburcu-dev"
           EXTRA_CONFIG="--enable-trace-backends=ust"
       compiler: gcc
     - env: TARGETS=i386-softmmu,x86_64-softmmu
-- 
2.7.0

[Qemu-devel] [PATCH v3 2/3] .travis.yml: run make check for all matrix targets

[Alex Bennée]

We only ran make check once before it used to be an unreliable target.
It was only a stop gap measure and we should be able to revert it now.
This also stops us needing a large all-MMU build.

We disable "make check" for a couple of the extra config targets which
are currently broken.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 .travis.yml | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 4a0c23a..16be23f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -40,7 +40,7 @@ notifications:
     on_failure: always
 env:
   global:
-    - TEST_CMD=""
+    - TEST_CMD="make check"
     - EXTRA_CONFIG=""
   matrix:
     # Group major targets together with their linux-user counterparts
@@ -73,17 +73,14 @@ script:
 matrix:
   # We manually include a number of additional build for non-standard bits
   include:
-    # Make check target (we only do this once)
-    - env:
-        - TARGETS=alpha-softmmu,arm-softmmu,aarch64-softmmu,cris-softmmu,i386-softmmu,x86_64-softmmu,m68k-softmmu,microblaze-softmmu,microblazeel-softmmu,mips-softmmu,mips64-softmmu,mips64el-softmmu,mipsel-softmmu,or32-softmmu,ppc-softmmu,ppc64-softmmu,ppcemb-softmmu,s390x-softmmu,sh4-softmmu,sh4eb-softmmu,sparc-softmmu,sparc64-softmmu,unicore32-softmmu,lm32-softmmu,moxie-softmmu,tricore-softmmu,xtensa-softmmu,xtensaeb-softmmu
-          TEST_CMD="make check"
-      compiler: gcc
     # Debug related options
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-debug"
       compiler: gcc
+    # We currently disable "make check"
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-debug --enable-tcg-interpreter"
+           TEST_CMD=""
       compiler: gcc
     # Disable a few of the optional features
     - env: TARGETS=i386-softmmu,x86_64-softmmu
@@ -104,11 +101,15 @@ matrix:
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-trace-backends=simple"
       compiler: gcc
+    # We currently disable "make check"
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-trace-backends=ftrace"
+           TEST_CMD=""
       compiler: gcc
+    # We currently disable "make check"
     - env: TARGETS=i386-softmmu,x86_64-softmmu
-          EXTRA_CONFIG="--enable-trace-backends=ust"
+           EXTRA_CONFIG="--enable-trace-backends=ust"
+           TEST_CMD=""
       compiler: gcc
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-modules"
-- 
2.7.0

[Qemu-devel] [PATCH v3 3/3] .travis.yml: enable each of the co-routine backends

[Alex Bennée]

We disable "make check" for the gthread backend as it is broken.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 .travis.yml | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 16be23f..021eec7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -94,6 +94,10 @@ matrix:
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-sparse"
       compiler: gcc
+    # Modules
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--enable-modules"
+      compiler: gcc
     # All the trace backends (apart from dtrace)
     - env: TARGETS=i386-softmmu,x86_64-softmmu
            EXTRA_CONFIG="--enable-trace-backends=stderr"
@@ -111,6 +115,15 @@ matrix:
            EXTRA_CONFIG="--enable-trace-backends=ust"
            TEST_CMD=""
       compiler: gcc
+    # All the co-routine backends (apart from windows)
+    # We currently disable "make check"
     - env: TARGETS=i386-softmmu,x86_64-softmmu
-           EXTRA_CONFIG="--enable-modules"
+           EXTRA_CONFIG="--with-coroutine=gthread"
+           TEST_CMD=""
+      compiler: gcc
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--with-coroutine=ucontext"
+      compiler: gcc
+    - env: TARGETS=i386-softmmu,x86_64-softmmu
+           EXTRA_CONFIG="--with-coroutine=sigaltstack"
       compiler: gcc
-- 
2.7.0

Re: [Qemu-devel] [PATCH v3 0/3] Travis updates

[Michael Tokarev]

28.01.2016 17:23, Alex Bennée wrote:
> Hi,
> 
> The first patch has been reviewed and signed off. Long term I think
> it is worth applying but it look like the performance increase it
> negligible compared to the old style VM builds at the moment. I
> suspect this may be because the new infrastructure is under more load
> as more projects have migrated.

I'm applying all this to -trivial, but without trying to understand
what it is all about, as I don't know travis.

Thanks,

/mjt

Re: [Qemu-devel] [PATCH v3 2/3] .travis.yml: run make check for all matrix targets

[David Gibson]

[-- Attachment #1: Type: text/plain, Size: 3421 bytes --]

On Thu, Jan 28, 2016 at 02:23:28PM +0000, Alex Bennée wrote:
> We only ran make check once before it used to be an unreliable target.
> It was only a stop gap measure and we should be able to revert it now.
> This also stops us needing a large all-MMU build.
> 
> We disable "make check" for a couple of the extra config targets which
> are currently broken.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

So, in general I like the idea of running make check more widely.

However.. I was wondering - what's the rationale for having separate
matrix builds for each target (or small group) rather than just doing
one build with all the targets?

I can't see any obvious benefit to splitting the build that way, but
it does increase the total build time significantly - and will do so
rather more so with make check added.

> ---
>  .travis.yml | 15 ++++++++-------
>  1 file changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/.travis.yml b/.travis.yml
> index 4a0c23a..16be23f 100644
> --- a/.travis.yml
> +++ b/.travis.yml
> @@ -40,7 +40,7 @@ notifications:
>      on_failure: always
>  env:
>    global:
> -    - TEST_CMD=""
> +    - TEST_CMD="make check"
>      - EXTRA_CONFIG=""
>    matrix:
>      # Group major targets together with their linux-user counterparts
> @@ -73,17 +73,14 @@ script:
>  matrix:
>    # We manually include a number of additional build for non-standard bits
>    include:
> -    # Make check target (we only do this once)
> -    - env:
> -        - TARGETS=alpha-softmmu,arm-softmmu,aarch64-softmmu,cris-softmmu,i386-softmmu,x86_64-softmmu,m68k-softmmu,microblaze-softmmu,microblazeel-softmmu,mips-softmmu,mips64-softmmu,mips64el-softmmu,mipsel-softmmu,or32-softmmu,ppc-softmmu,ppc64-softmmu,ppcemb-softmmu,s390x-softmmu,sh4-softmmu,sh4eb-softmmu,sparc-softmmu,sparc64-softmmu,unicore32-softmmu,lm32-softmmu,moxie-softmmu,tricore-softmmu,xtensa-softmmu,xtensaeb-softmmu
> -          TEST_CMD="make check"
> -      compiler: gcc
>      # Debug related options
>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>             EXTRA_CONFIG="--enable-debug"
>        compiler: gcc
> +    # We currently disable "make check"
>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>             EXTRA_CONFIG="--enable-debug --enable-tcg-interpreter"
> +           TEST_CMD=""
>        compiler: gcc
>      # Disable a few of the optional features
>      - env: TARGETS=i386-softmmu,x86_64-softmmu
> @@ -104,11 +101,15 @@ matrix:
>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>             EXTRA_CONFIG="--enable-trace-backends=simple"
>        compiler: gcc
> +    # We currently disable "make check"
>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>             EXTRA_CONFIG="--enable-trace-backends=ftrace"
> +           TEST_CMD=""
>        compiler: gcc
> +    # We currently disable "make check"
>      - env: TARGETS=i386-softmmu,x86_64-softmmu
> -          EXTRA_CONFIG="--enable-trace-backends=ust"
> +           EXTRA_CONFIG="--enable-trace-backends=ust"
> +           TEST_CMD=""
>        compiler: gcc
>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>             EXTRA_CONFIG="--enable-modules"

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

Re: [Qemu-devel] [PATCH v3 2/3] .travis.yml: run make check for all matrix targets

[Alex Bennée]

David Gibson <david@gibson.dropbear.id.au> writes:

> On Thu, Jan 28, 2016 at 02:23:28PM +0000, Alex Bennée wrote:
>> We only ran make check once before it used to be an unreliable target.
>> It was only a stop gap measure and we should be able to revert it now.
>> This also stops us needing a large all-MMU build.
>>
>> We disable "make check" for a couple of the extra config targets which
>> are currently broken.
>>
>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>
> So, in general I like the idea of running make check more widely.
>
> However.. I was wondering - what's the rationale for having separate
> matrix builds for each target (or small group) rather than just doing
> one build with all the targets?

Each individual part of the matrix can be run in parallel with the
others so it makes sense to keep the build component small (as each
softmmu target rebuilds a significant chunk of the build).

Having said that there is a fair amount of repetition as we are
repeating all the generic qtests each time just so we can run the extra
${TARGET}-qtest binaries.

Travis does has an option for using ccache so it might be worth
experimenting with that to see if things are improved.

> I can't see any obvious benefit to splitting the build that way, but
> it does increase the total build time significantly - and will do so
> rather more so with make check added.

Elapsed and total are the ones to look at:

https://travis-ci.org/stsquad/qemu/builds/105401126

vs

https://travis-ci.org/qemu/qemu/builds/105711606

However it looks like Travis are having scaling growing pains because
there "old style" VM approach is running a lot faster than it used to.

>
>> ---
>>  .travis.yml | 15 ++++++++-------
>>  1 file changed, 8 insertions(+), 7 deletions(-)
>>
>> diff --git a/.travis.yml b/.travis.yml
>> index 4a0c23a..16be23f 100644
>> --- a/.travis.yml
>> +++ b/.travis.yml
>> @@ -40,7 +40,7 @@ notifications:
>>      on_failure: always
>>  env:
>>    global:
>> -    - TEST_CMD=""
>> +    - TEST_CMD="make check"
>>      - EXTRA_CONFIG=""
>>    matrix:
>>      # Group major targets together with their linux-user counterparts
>> @@ -73,17 +73,14 @@ script:
>>  matrix:
>>    # We manually include a number of additional build for non-standard bits
>>    include:
>> -    # Make check target (we only do this once)
>> -    - env:
>> -        - TARGETS=alpha-softmmu,arm-softmmu,aarch64-softmmu,cris-softmmu,i386-softmmu,x86_64-softmmu,m68k-softmmu,microblaze-softmmu,microblazeel-softmmu,mips-softmmu,mips64-softmmu,mips64el-softmmu,mipsel-softmmu,or32-softmmu,ppc-softmmu,ppc64-softmmu,ppcemb-softmmu,s390x-softmmu,sh4-softmmu,sh4eb-softmmu,sparc-softmmu,sparc64-softmmu,unicore32-softmmu,lm32-softmmu,moxie-softmmu,tricore-softmmu,xtensa-softmmu,xtensaeb-softmmu
>> -          TEST_CMD="make check"
>> -      compiler: gcc
>>      # Debug related options
>>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>>             EXTRA_CONFIG="--enable-debug"
>>        compiler: gcc
>> +    # We currently disable "make check"
>>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>>             EXTRA_CONFIG="--enable-debug --enable-tcg-interpreter"
>> +           TEST_CMD=""
>>        compiler: gcc
>>      # Disable a few of the optional features
>>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>> @@ -104,11 +101,15 @@ matrix:
>>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>>             EXTRA_CONFIG="--enable-trace-backends=simple"
>>        compiler: gcc
>> +    # We currently disable "make check"
>>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>>             EXTRA_CONFIG="--enable-trace-backends=ftrace"
>> +           TEST_CMD=""
>>        compiler: gcc
>> +    # We currently disable "make check"
>>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>> -          EXTRA_CONFIG="--enable-trace-backends=ust"
>> +           EXTRA_CONFIG="--enable-trace-backends=ust"
>> +           TEST_CMD=""
>>        compiler: gcc
>>      - env: TARGETS=i386-softmmu,x86_64-softmmu
>>             EXTRA_CONFIG="--enable-modules"


--
Alex Bennée

Re: [Qemu-devel] [PATCH v3 0/3] Travis updates

[Alex Bennée]

Michael Tokarev <mjt@tls.msk.ru> writes:

> 28.01.2016 17:23, Alex Bennée wrote:
>> Hi,
>>
>> The first patch has been reviewed and signed off. Long term I think
>> it is worth applying but it look like the performance increase it
>> negligible compared to the old style VM builds at the moment. I
>> suspect this may be because the new infrastructure is under more load
>> as more projects have migrated.
>
> I'm applying all this to -trivial, but without trying to understand
> what it is all about, as I don't know travis.

Maybe we should hold off for now until the later ones have been reviewed
(David has some comments on 2/3). I guess it was really a question of if
trivial is the right tree for these patches to go upstream.

Maybe what's really needed is a build and test automation tree (and
associated maintainer)? Peter any comments?

>
> Thanks,
>
> /mjt


--
Alex Bennée

Re: [Qemu-devel] [PATCH v3 2/3] .travis.yml: run make check for all matrix targets

[David Gibson]

[-- Attachment #1: Type: text/plain, Size: 2794 bytes --]

On Sun, Jan 31, 2016 at 08:37:49AM +0000, Alex Bennée wrote:
> 
> David Gibson <david@gibson.dropbear.id.au> writes:
> 
> > On Thu, Jan 28, 2016 at 02:23:28PM +0000, Alex Bennée wrote:
> >> We only ran make check once before it used to be an unreliable target.
> >> It was only a stop gap measure and we should be able to revert it now.
> >> This also stops us needing a large all-MMU build.
> >>
> >> We disable "make check" for a couple of the extra config targets which
> >> are currently broken.
> >>
> >> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> >
> > So, in general I like the idea of running make check more widely.
> >
> > However.. I was wondering - what's the rationale for having separate
> > matrix builds for each target (or small group) rather than just doing
> > one build with all the targets?
> 
> Each individual part of the matrix can be run in parallel with the
> others so it makes sense to keep the build component small (as each
> softmmu target rebuilds a significant chunk of the build).

It does rebuild a significant chunk, but there's a significant chunk
that isn't rebuilt as well.  When I tried this I found a recombined
build marginally decreases the elapsed time and significantly (maybe
30-40%) reduced the total time.  Given the load the travis system is
under, it seems to me that we should try to keep our total demand on
its resources down when it doens't significantly lower our coverage.

> Having said that there is a fair amount of repetition as we are
> repeating all the generic qtests each time just so we can run the extra
> ${TARGET}-qtest binaries.

That too.

> Travis does has an option for using ccache so it might be worth
> experimenting with that to see if things are improved.

That does sound like something worth looking at.

One thing that does annoy me about travis is that it will do a full
rebuild if you have two branches on exactly the same commit, or if you
revert a branch to an earlier commit which was built previously.

> > I can't see any obvious benefit to splitting the build that way, but
> > it does increase the total build time significantly - and will do so
> > rather more so with make check added.
> 
> Elapsed and total are the ones to look at:
> 
> https://travis-ci.org/stsquad/qemu/builds/105401126
> 
> vs
> 
> https://travis-ci.org/qemu/qemu/builds/105711606
> 
> However it looks like Travis are having scaling growing pains because
> there "old style" VM approach is running a lot faster than it used
> to.

Not terribly surprising TBH.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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Re: [Qemu-devel] [PATCH v3 0/3] Travis updates

[Peter Maydell]

On 31 January 2016 at 08:43, Alex Bennée <alex.bennee@linaro.org> wrote:
> Maybe what's really needed is a build and test automation tree (and
> associated maintainer)? Peter any comments?

If you want to be the submaintainer for that, be my guest :-)

thanks
-- PMM

Re: [Qemu-devel] [PATCH v3 0/3] Travis updates

[Michael Tokarev]

31.01.2016 11:43, Alex Bennée wrote:
> Michael Tokarev <mjt@tls.msk.ru> writes:
>> 28.01.2016 17:23, Alex Bennée wrote:
>>> Hi,
>>>
>>> The first patch has been reviewed and signed off. Long term I think
>>> it is worth applying but it look like the performance increase it
>>> negligible compared to the old style VM builds at the moment. I
>>> suspect this may be because the new infrastructure is under more load
>>> as more projects have migrated.
>>
>> I'm applying all this to -trivial, but without trying to understand
>> what it is all about, as I don't know travis.
> 
> Maybe we should hold off for now until the later ones have been reviewed
> (David has some comments on 2/3). I guess it was really a question of if
> trivial is the right tree for these patches to go upstream.

Ok, I removed the series from the -trivial patch queue for now.

Thanks,

/mjt