从 Kubernetes 永久性卷观察到 NFS 未对齐的 I/O

从 Kubernetes 永久性卷观察到 NFS 未对齐的 I/O 。

示例：

volume:k8s_volume:nfs_write_data:97970b/s

volume:k8s_volume:nfs_write_latency:71.71us

volume:k8s_volume:nfs_protocol_write_histo.< 4KB:2778

volume:k8s_volume:nfs_protocol_write_histo.= 4KB:3962

volume:k8s_volume:nfs_protocol_write_histo.< 8KB:60

volume:k8s_volume:nfs_protocol_write_histo.= 8KB:1016

volume:k8s_volume:nfs_protocol_write_histo.< 16KB:283

volume:k8s_volume:nfs_protocol_write_histo.= 16KB:105

volume:k8s_volume:nfs_protocol_write_histo.< 32KB:20

volume:k8s_volume:nfs_protocol_write_histo.= 32KB:0

volume:k8s_volume:nfs_protocol_write_histo.< 64KB:0

volume:k8s_volume:nfs_protocol_write_histo.= 64KB:0

volume:k8s_volume:nfs_protocol_write_histo.< 256KB:0

volume:k8s_volume:nfs_protocol_write_histo.= 256KB:0

volume:k8s_volume:nfs_protocol_write_histo.< 1024KB:0

volume:k8s_volume:nfs_protocol_write_histo.= 1024KB:0

volume:k8s_volume:nfs_protocol_write_histo.> 1024KB:0

volume:k8s_volume:nfs_protocol_misaligned_writes.misaligned 4KB:4096

volume:k8s_volume:nfs_protocol_misaligned_writes.misaligned 8KB:4481024

volume:k8s_volume:nfs_protocol_misaligned_writes.misaligned 16KB:1294336

volume:k8s_volume:nfs_protocol_misaligned_writes.misaligned 32KB:0

volume:k8s_volume:nfs_protocol_misaligned_writes.misaligned REST:44928