diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/sunrpc/metrics.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/sunrpc/metrics.h | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/ANDROID_3.4.5/include/linux/sunrpc/metrics.h b/ANDROID_3.4.5/include/linux/sunrpc/metrics.h deleted file mode 100644 index 1565bbe8..00000000 --- a/ANDROID_3.4.5/include/linux/sunrpc/metrics.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * linux/include/linux/sunrpc/metrics.h - * - * Declarations for RPC client per-operation metrics - * - * Copyright (C) 2005 Chuck Lever <cel@netapp.com> - * - * RPC client per-operation statistics provide latency and retry - * information about each type of RPC procedure in a given RPC program. - * These statistics are not for detailed problem diagnosis, but simply - * to indicate whether the problem is local or remote. - * - * These counters are not meant to be human-readable, but are meant to be - * integrated into system monitoring tools such as "sar" and "iostat". As - * such, the counters are sampled by the tools over time, and are never - * zeroed after a file system is mounted. Moving averages can be computed - * by the tools by taking the difference between two instantaneous samples - * and dividing that by the time between the samples. - * - * The counters are maintained in a single array per RPC client, indexed - * by procedure number. There is no need to maintain separate counter - * arrays per-CPU because these counters are always modified behind locks. - */ - -#ifndef _LINUX_SUNRPC_METRICS_H -#define _LINUX_SUNRPC_METRICS_H - -#include <linux/seq_file.h> -#include <linux/ktime.h> - -#define RPC_IOSTATS_VERS "1.0" - -struct rpc_iostats { - /* - * These counters give an idea about how many request - * transmissions are required, on average, to complete that - * particular procedure. Some procedures may require more - * than one transmission because the server is unresponsive, - * the client is retransmitting too aggressively, or the - * requests are large and the network is congested. - */ - unsigned long om_ops, /* count of operations */ - om_ntrans, /* count of RPC transmissions */ - om_timeouts; /* count of major timeouts */ - - /* - * These count how many bytes are sent and received for a - * given RPC procedure type. This indicates how much load a - * particular procedure is putting on the network. These - * counts include the RPC and ULP headers, and the request - * payload. - */ - unsigned long long om_bytes_sent, /* count of bytes out */ - om_bytes_recv; /* count of bytes in */ - - /* - * The length of time an RPC request waits in queue before - * transmission, the network + server latency of the request, - * and the total time the request spent from init to release - * are measured. - */ - ktime_t om_queue, /* queued for xmit */ - om_rtt, /* RPC RTT */ - om_execute; /* RPC execution */ -} ____cacheline_aligned; - -struct rpc_task; -struct rpc_clnt; - -/* - * EXPORTed functions for managing rpc_iostats structures - */ - -#ifdef CONFIG_PROC_FS - -struct rpc_iostats * rpc_alloc_iostats(struct rpc_clnt *); -void rpc_count_iostats(const struct rpc_task *, - struct rpc_iostats *); -void rpc_print_iostats(struct seq_file *, struct rpc_clnt *); -void rpc_free_iostats(struct rpc_iostats *); - -#else /* CONFIG_PROC_FS */ - -static inline struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt) { return NULL; } -static inline void rpc_count_iostats(const struct rpc_task *task, - struct rpc_iostats *stats) {} -static inline void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt) {} -static inline void rpc_free_iostats(struct rpc_iostats *stats) {} - -#endif /* CONFIG_PROC_FS */ - -#endif /* _LINUX_SUNRPC_METRICS_H */ |