This adds two new control channel requests, START_PERFSTAT and
STOP_PERFSTAT, that begin and end performance statistics collection
respectively. START_PERFSTAT takes the name of the mountpoint on which
to enable statistics collection and returns the current monotonic time.
STOP_PERFSTAT takes the name of the mountpoint on which to disable
statistics collection and returns the current monotonic time and the
message timings that have been collected.
Performance statistics are collected in a linked list of blocks. pthread
locks are used for synchronization.
Signed-off-by: David Sheets <dsheets@docker.com>
This will potentially leave stuff in lost+found but may be able to
recover from more filesystem corruption.
See #736
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This means the base system build and kernel build can be split
without dependencies, and just assembled later.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
- Update VMBus lockup patch (0009) based on the one submitted to LKML
- Remove hack to forcea TimeSync protocol to version 3 (0005)
- Properly cherry-pick patch 0008 (was missing the cherry-pick reference)
- Add a new patch which properly negotiates the TimeSync protocol (0012)
- The latter required cherry-picking 0010 and 0011
Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
- simplify the process by having the riddler container build the rootfs and config
- output tarred up rootfs and config.json as otherwise file ownership not preserved
- allow easy build of a collection of container tarballs with another conversion script
This makes it easy to choose which container images you want and just convert any
set to a initrd image
```
tar cf - container1.tar container2.tar | docker run -i tartar2initrd > initrd.img
```
Next stage will use a manifest to select the ones to add for each edition.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
Move to the development track of `containerd` not the legacy 0.2
branch. The commands have changed a bit.
This does increase the image size as we are bundling the Docker
copy and our copy, and the new one is larger as it is growing features.
Hopefully Docker will shrink eventually. Also we may replace `ctr`
with a library.
Fix#1029
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
Add basic database setup for AWS, GCP although these are not yet used
by the setup code but will be useful later.
Currently each is gated by `mobyplatform` but this can be removed once we
construct Moby per platform, and once these are containerised so they
are not run from `openrc`.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
Previously we allocated `sizeof(struct ring) + size`. This patch
allocates `sizeof(struct ring)` and then `size` for the payload
separately. Hopefully the payload will be better aligned.
Signed-off-by: David Scott <dave.scott@docker.com>
This patch adds a simple ring buffer implementation and uses it to buffer
the reads and writes to/from the AF_HYPERV socket and tap file descriptor.
This removes the need to perform small reads and writes for the per-packet
headers and allows a read on the Hyper-V socket to block at the same time
as a write to the tap device (and vice-versa)
The configuration in the init.d script is:
- a max message size (individual read or write) of 8192. Experimentally
this seems to be the largest completely reliable size across the Windows
versions we can support. Messages of length 16384 sometimes fail.
- a buffer size of 256KiB in each direction.
Single stream TCP throughput as measured by iperf increases modestly, by
another 100Mbit/sec.
Signed-off-by: David Scott <dave.scott@docker.com>
In #1057 removed the 9p paths from the database mount
but that broke some users accessing them directly. Fix these.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
