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solver: faster vertex loading 

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
docker-18.09
Tonis Tiigi 2018-03-17 16:29:38 -07:00
parent 12198eea27
commit 0d536d40b9
1 changed files with 13 additions and 3 deletions
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16
solver-next/jobs.go
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@ -190,13 +190,21 @@ func (jl *JobList) Close() {
func (jl *JobList) load(v, parent Vertex, j *Job) (Vertex, error) {
jl.mu.Lock()
defer jl.mu.Unlock()
return jl.loadUnlocked(v, parent, j)
cache := map[Vertex]Vertex{}
return jl.loadUnlocked(v, parent, j, cache)
}
func (jl *JobList) loadUnlocked(v, parent Vertex, j *Job) (Vertex, error) {
func (jl *JobList) loadUnlocked(v, parent Vertex, j *Job, cache map[Vertex]Vertex) (Vertex, error) {
if v, ok := cache[v]; ok {
return v, nil
}
origVtx := v
inputs := make([]Edge, len(v.Inputs()))
for i, e := range v.Inputs() {
v, err := jl.loadUnlocked(e.Vertex, parent, j)
v, err := jl.loadUnlocked(e.Vertex, parent, j, cache)
if err != nil {
return nil, err
}
@ -207,6 +215,7 @@ func (jl *JobList) loadUnlocked(v, parent Vertex, j *Job) (Vertex, error) {
dgstWithoutCache := digest.FromBytes([]byte(fmt.Sprintf("%s-ignorecache", dgst)))
// if same vertex is already loaded without cache just use that
st, ok := jl.actives[dgstWithoutCache]
if !ok {
@ -269,6 +278,7 @@ func (jl *JobList) loadUnlocked(v, parent Vertex, j *Job) (Vertex, error) {
}
jl.connectProgressFromState(st, st)
cache[origVtx] = v
return v, nil
}