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Merge pull request #42710 from rvolosatovs/parallelize_system_df

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daemon: paralellize disk usage computations
This commit is contained in:
Sebastiaan van Stijn 2021-08-06 09:55:51 +02:00 committed by GitHub
commit 5e498e20f7
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 39 additions and 25 deletions
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32
daemon/disk_usage.go
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@ -8,6 +8,7 @@ import (
"github.com/docker/docker/api/server/router/system"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/filters"
"golang.org/x/sync/errgroup"
)
// SystemDiskUsage returns information about the daemon data disk usage
@ -17,18 +18,22 @@ func (daemon *Daemon) SystemDiskUsage(ctx context.Context, opts system.DiskUsage
}
defer atomic.StoreInt32(&daemon.diskUsageRunning, 0)
var err error
eg, ctx := errgroup.WithContext(ctx)
var containers []*types.Container
if opts.Containers {
eg.Go(func() error {
var err error
// Retrieve container list
containers, err = daemon.Containers(&types.ContainerListOptions{
Size: true,
All: true,
})
if err != nil {
return nil, fmt.Errorf("failed to retrieve container list: %v", err)
return fmt.Errorf("failed to retrieve container list: %v", err)
}
return nil
})
}
var (
@ -36,6 +41,8 @@ func (daemon *Daemon) SystemDiskUsage(ctx context.Context, opts system.DiskUsage
layersSize int64
)
if opts.Images {
eg.Go(func() error {
var err error
// Get all top images with extra attributes
images, err = daemon.imageService.Images(ctx, types.ImageListOptions{
Filters: filters.NewArgs(),
@ -43,21 +50,28 @@ func (daemon *Daemon) SystemDiskUsage(ctx context.Context, opts system.DiskUsage
ContainerCount: true,
})
if err != nil {
return nil, fmt.Errorf("failed to retrieve image list: %v", err)
return fmt.Errorf("failed to retrieve image list: %v", err)
}
return nil
})
eg.Go(func() error {
var err error
layersSize, err = daemon.imageService.LayerDiskUsage(ctx)
if err != nil {
return nil, err
}
return err
})
}
var volumes []*types.Volume
if opts.Volumes {
eg.Go(func() error {
var err error
volumes, err = daemon.volumes.LocalVolumesSize(ctx)
if err != nil {
return nil, err
return err
})
}
if err := eg.Wait(); err != nil {
return nil, err
}
return &types.DiskUsage{
LayersSize: layersSize,