Add generator tests that verify the timestamps for the sync events
emitted in the go1.25 trace format and earlier versions.
Add the ability to configure the properties of the per-generation sync
batches in testgen. Also refactor testgen to produce more realistic
timestamps by keeping track of lastTs and using it for structural
batches that don't have their own timestamps. Otherwise they default to
zero which means the minTs of the generation can't be controlled.
For #69869
Change-Id: I92a49b8281bc4169b63e13c030c1de7720cd6f26
Reviewed-on: https://go-review.googlesource.com/c/go/+/653876
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Check that the clock snapshots, when expected to be present, are
non-zero and monotonically increasing.
This required some refactoring to make the validator aware of the
version of the trace it is validating.
Change-Id: I04c4dd10fe6975cbac12bb0ddaebcec3a5284e7b
Reviewed-on: https://go-review.googlesource.com/c/go/+/669715
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: David Chase <drchase@google.com>
This change moves the v2 tracer into the trace directory.
Updates #67367
Change-Id: I3657b4227002cb00fdf29c797434800ea796715e
Reviewed-on: https://go-review.googlesource.com/c/go/+/584538
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>