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gc: add events for profiling GC

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License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>
This commit is contained in:
Jakub Sztandera
2017-08-09 23:18:50 +02:00
parent 3b60666d25
commit 5e3fd5e708
1 changed files with 21 additions and 0 deletions
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21
pin/gc/gc.go
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@ -9,10 +9,13 @@ import (
dag "github.com/ipfs/go-ipfs/merkledag"
pin "github.com/ipfs/go-ipfs/pin"
logging "gx/ipfs/QmSpJByNKFX1sCsHBEp3R73FL4NF6FnQTEGyNAXHm2GS52/go-log"
cid "gx/ipfs/QmTprEaAA2A9bst5XH7exuyi5KzNMK3SEDNN8rBDnKWcUS/go-cid"
node "gx/ipfs/QmYNyRZJBUYPNrLszFmrBrPJbsBh2vMsefz5gnDpB5M1P6/go-ipld-format"
)
var log = logging.Logger("gc")
// Result represents an incremental output from a garbage collection
// run. It contains either an error, or the cid of a removed object.
type Result struct {
@ -31,7 +34,13 @@ type Result struct {
// deletes any block that is not found in the marked set.
//
func GC(ctx context.Context, bs bstore.GCBlockstore, ls dag.LinkService, pn pin.Pinner, bestEffortRoots []*cid.Cid) <-chan Result {
elock := log.EventBegin(ctx, "GC.lockWait")
unlocker := bs.GCLock()
elock.Done()
elock = log.EventBegin(ctx, "GC.locked")
emark := log.EventBegin(ctx, "GC.mark")
ls = ls.GetOfflineLinkService()
output := make(chan Result, 128)
@ -39,12 +48,18 @@ func GC(ctx context.Context, bs bstore.GCBlockstore, ls dag.LinkService, pn pin.
go func() {
defer close(output)
defer unlocker.Unlock()
defer elock.Done()
gcs, err := ColoredSet(ctx, pn, ls, bestEffortRoots, output)
if err != nil {
output <- Result{Error: err}
return
}
emark.Append(logging.LoggableMap{
"blackSetSize": fmt.Sprintf("%d", gcs.Len()),
})
emark.Done()
esweep := log.EventBegin(ctx, "GC.sweep")
keychan, err := bs.AllKeysChan(ctx)
if err != nil {
@ -53,6 +68,7 @@ func GC(ctx context.Context, bs bstore.GCBlockstore, ls dag.LinkService, pn pin.
}
errors := false
var removed uint64
loop:
for {
@ -63,6 +79,7 @@ func GC(ctx context.Context, bs bstore.GCBlockstore, ls dag.LinkService, pn pin.
}
if !gcs.Has(k) {
err := bs.DeleteBlock(k)
removed++
if err != nil {
errors = true
output <- Result{Error: &CannotDeleteBlockError{k, err}}
@ -80,6 +97,10 @@ func GC(ctx context.Context, bs bstore.GCBlockstore, ls dag.LinkService, pn pin.
break loop
}
}
esweep.Append(logging.LoggableMap{
"whiteSetSize": fmt.Sprintf("%d", removed),
})
esweep.Done()
if errors {
output <- Result{Error: ErrCannotDeleteSomeBlocks}
}