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Diffstat (limited to 'drivers/staging/lustre/lustre/obdclass/lprocfs_jobstats.c')
-rw-r--r--drivers/staging/lustre/lustre/obdclass/lprocfs_jobstats.c562
1 files changed, 0 insertions, 562 deletions
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_jobstats.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_jobstats.c
deleted file mode 100644
index e2d57fef0da3..000000000000
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_jobstats.c
+++ /dev/null
@@ -1,562 +0,0 @@
-/* GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2011, 2012, Intel Corporation.
- * Use is subject to license terms.
- *
- * Author: Niu Yawei <niu@whamcloud.com>
- */
-/*
- * lustre/obdclass/lprocfs_jobstats.c
- */
-
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
-#define DEBUG_SUBSYSTEM S_CLASS
-
-
-#include <obd_class.h>
-#include <lprocfs_status.h>
-#include <lustre/lustre_idl.h>
-
-#if defined(LPROCFS)
-
-/*
- * JobID formats & JobID environment variable names for supported
- * job schedulers:
- *
- * SLURM:
- * JobID format: 32 bit integer.
- * JobID env var: SLURM_JOB_ID.
- * SGE:
- * JobID format: Decimal integer range to 99999.
- * JobID env var: JOB_ID.
- * LSF:
- * JobID format: 6 digit integer by default (up to 999999), can be
- * increased to 10 digit (up to 2147483646).
- * JobID env var: LSB_JOBID.
- * Loadleveler:
- * JobID format: String of machine_name.cluster_id.process_id, for
- * example: fr2n02.32.0
- * JobID env var: LOADL_STEP_ID.
- * PBS:
- * JobID format: String of sequence_number[.server_name][@server].
- * JobID env var: PBS_JOBID.
- * Maui/MOAB:
- * JobID format: Same as PBS.
- * JobID env var: Same as PBS.
- */
-
-struct job_stat {
- struct hlist_node js_hash;
- struct list_head js_list;
- atomic_t js_refcount;
- char js_jobid[JOBSTATS_JOBID_SIZE];
- time_t js_timestamp; /* seconds */
- struct lprocfs_stats *js_stats;
- struct obd_job_stats *js_jobstats;
-};
-
-static unsigned job_stat_hash(cfs_hash_t *hs, const void *key, unsigned mask)
-{
- return cfs_hash_djb2_hash(key, strlen(key), mask);
-}
-
-static void *job_stat_key(struct hlist_node *hnode)
-{
- struct job_stat *job;
- job = hlist_entry(hnode, struct job_stat, js_hash);
- return job->js_jobid;
-}
-
-static int job_stat_keycmp(const void *key, struct hlist_node *hnode)
-{
- struct job_stat *job;
- job = hlist_entry(hnode, struct job_stat, js_hash);
- return (strlen(job->js_jobid) == strlen(key)) &&
- !strncmp(job->js_jobid, key, strlen(key));
-}
-
-static void *job_stat_object(struct hlist_node *hnode)
-{
- return hlist_entry(hnode, struct job_stat, js_hash);
-}
-
-static void job_stat_get(cfs_hash_t *hs, struct hlist_node *hnode)
-{
- struct job_stat *job;
- job = hlist_entry(hnode, struct job_stat, js_hash);
- atomic_inc(&job->js_refcount);
-}
-
-static void job_free(struct job_stat *job)
-{
- LASSERT(atomic_read(&job->js_refcount) == 0);
- LASSERT(job->js_jobstats);
-
- write_lock(&job->js_jobstats->ojs_lock);
- list_del_init(&job->js_list);
- write_unlock(&job->js_jobstats->ojs_lock);
-
- lprocfs_free_stats(&job->js_stats);
- OBD_FREE_PTR(job);
-}
-
-static void job_putref(struct job_stat *job)
-{
- LASSERT(atomic_read(&job->js_refcount) > 0);
- if (atomic_dec_and_test(&job->js_refcount))
- job_free(job);
-}
-
-static void job_stat_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
-{
- struct job_stat *job;
- job = hlist_entry(hnode, struct job_stat, js_hash);
- job_putref(job);
-}
-
-static void job_stat_exit(cfs_hash_t *hs, struct hlist_node *hnode)
-{
- CERROR("Should not have any items!");
-}
-
-static cfs_hash_ops_t job_stats_hash_ops = {
- .hs_hash = job_stat_hash,
- .hs_key = job_stat_key,
- .hs_keycmp = job_stat_keycmp,
- .hs_object = job_stat_object,
- .hs_get = job_stat_get,
- .hs_put_locked = job_stat_put_locked,
- .hs_exit = job_stat_exit,
-};
-
-static int job_iter_callback(cfs_hash_t *hs, cfs_hash_bd_t *bd,
- struct hlist_node *hnode, void *data)
-{
- time_t oldest = *((time_t *)data);
- struct job_stat *job;
-
- job = hlist_entry(hnode, struct job_stat, js_hash);
- if (!oldest || job->js_timestamp < oldest)
- cfs_hash_bd_del_locked(hs, bd, hnode);
-
- return 0;
-}
-
-static void lprocfs_job_cleanup(struct obd_job_stats *stats, bool force)
-{
- time_t oldest, now;
-
- if (stats->ojs_cleanup_interval == 0)
- return;
-
- now = cfs_time_current_sec();
- if (!force && now < stats->ojs_last_cleanup +
- stats->ojs_cleanup_interval)
- return;
-
- oldest = now - stats->ojs_cleanup_interval;
- cfs_hash_for_each_safe(stats->ojs_hash, job_iter_callback,
- &oldest);
- stats->ojs_last_cleanup = cfs_time_current_sec();
-}
-
-static struct job_stat *job_alloc(char *jobid, struct obd_job_stats *jobs)
-{
- struct job_stat *job;
-
- LASSERT(jobs->ojs_cntr_num && jobs->ojs_cntr_init_fn);
-
- OBD_ALLOC_PTR(job);
- if (job == NULL)
- return NULL;
-
- job->js_stats = lprocfs_alloc_stats(jobs->ojs_cntr_num, 0);
- if (job->js_stats == NULL) {
- OBD_FREE_PTR(job);
- return NULL;
- }
-
- jobs->ojs_cntr_init_fn(job->js_stats);
-
- memcpy(job->js_jobid, jobid, JOBSTATS_JOBID_SIZE);
- job->js_timestamp = cfs_time_current_sec();
- job->js_jobstats = jobs;
- INIT_HLIST_NODE(&job->js_hash);
- INIT_LIST_HEAD(&job->js_list);
- atomic_set(&job->js_refcount, 1);
-
- return job;
-}
-
-int lprocfs_job_stats_log(struct obd_device *obd, char *jobid,
- int event, long amount)
-{
- struct obd_job_stats *stats = &obd->u.obt.obt_jobstats;
- struct job_stat *job, *job2;
- ENTRY;
-
- LASSERT(stats && stats->ojs_hash);
-
- lprocfs_job_cleanup(stats, false);
-
- if (!jobid || !strlen(jobid))
- RETURN(-EINVAL);
-
- if (strlen(jobid) >= JOBSTATS_JOBID_SIZE) {
- CERROR("Invalid jobid size (%lu), expect(%d)\n",
- (unsigned long)strlen(jobid) + 1, JOBSTATS_JOBID_SIZE);
- RETURN(-EINVAL);
- }
-
- job = cfs_hash_lookup(stats->ojs_hash, jobid);
- if (job)
- goto found;
-
- job = job_alloc(jobid, stats);
- if (job == NULL)
- RETURN(-ENOMEM);
-
- job2 = cfs_hash_findadd_unique(stats->ojs_hash, job->js_jobid,
- &job->js_hash);
- if (job2 != job) {
- job_putref(job);
- job = job2;
- /* We cannot LASSERT(!list_empty(&job->js_list)) here,
- * since we just lost the race for inserting "job" into the
- * ojs_list, and some other thread is doing it _right_now_.
- * Instead, be content the other thread is doing this, since
- * "job2" was initialized in job_alloc() already. LU-2163 */
- } else {
- LASSERT(list_empty(&job->js_list));
- write_lock(&stats->ojs_lock);
- list_add_tail(&job->js_list, &stats->ojs_list);
- write_unlock(&stats->ojs_lock);
- }
-
-found:
- LASSERT(stats == job->js_jobstats);
- LASSERT(stats->ojs_cntr_num > event);
- job->js_timestamp = cfs_time_current_sec();
- lprocfs_counter_add(job->js_stats, event, amount);
-
- job_putref(job);
- RETURN(0);
-}
-EXPORT_SYMBOL(lprocfs_job_stats_log);
-
-void lprocfs_job_stats_fini(struct obd_device *obd)
-{
- struct obd_job_stats *stats = &obd->u.obt.obt_jobstats;
- time_t oldest = 0;
-
- if (stats->ojs_hash == NULL)
- return;
- cfs_hash_for_each_safe(stats->ojs_hash, job_iter_callback, &oldest);
- cfs_hash_putref(stats->ojs_hash);
- stats->ojs_hash = NULL;
- LASSERT(list_empty(&stats->ojs_list));
-}
-EXPORT_SYMBOL(lprocfs_job_stats_fini);
-
-static void *lprocfs_jobstats_seq_start(struct seq_file *p, loff_t *pos)
-{
- struct obd_job_stats *stats = p->private;
- loff_t off = *pos;
- struct job_stat *job;
-
- read_lock(&stats->ojs_lock);
- if (off == 0)
- return SEQ_START_TOKEN;
- off--;
- list_for_each_entry(job, &stats->ojs_list, js_list) {
- if (!off--)
- return job;
- }
- return NULL;
-}
-
-static void lprocfs_jobstats_seq_stop(struct seq_file *p, void *v)
-{
- struct obd_job_stats *stats = p->private;
-
- read_unlock(&stats->ojs_lock);
-}
-
-static void *lprocfs_jobstats_seq_next(struct seq_file *p, void *v, loff_t *pos)
-{
- struct obd_job_stats *stats = p->private;
- struct job_stat *job;
- struct list_head *next;
-
- ++*pos;
- if (v == SEQ_START_TOKEN) {
- next = stats->ojs_list.next;
- } else {
- job = (struct job_stat *)v;
- next = job->js_list.next;
- }
-
- return next == &stats->ojs_list ? NULL :
- list_entry(next, struct job_stat, js_list);
-}
-
-/*
- * Example of output on MDT:
- *
- * job_stats:
- * - job_id: test_id.222.25844
- * snapshot_time: 1322494486
- * open: { samples: 3, unit: reqs }
- * close: { samples: 3, unit: reqs }
- * mknod: { samples: 0, unit: reqs }
- * link: { samples: 0, unit: reqs }
- * unlink: { samples: 0, unit: reqs }
- * mkdir: { samples: 0, unit: reqs }
- * rmdir: { samples: 0, unit: reqs }
- * rename: { samples: 1, unit: reqs }
- * getattr: { samples: 7, unit: reqs }
- * setattr: { samples: 0, unit: reqs }
- * getxattr: { samples: 0, unit: reqs }
- * setxattr: { samples: 0, unit: reqs }
- * statfs: { samples: 0, unit: reqs }
- * sync: { samples: 0, unit: reqs }
- *
- * Example of output on OST:
- *
- * job_stats:
- * - job_id 4854
- * snapshot_time: 1322494602
- * read: { samples: 0, unit: bytes, min: 0, max: 0, sum: 0 }
- * write: { samples: 1, unit: bytes, min: 10, max: 10, sum: 10 }
- * setattr: { samples: 0, unit: reqs }
- * punch: { samples: 0, unit: reqs }
- * sync: { samples: 0, unit: reqs }
- */
-
-static const char spaces[] = " ";
-
-static int inline width(const char *str, int len)
-{
- return len - min((int)strlen(str), 15);
-}
-
-static int lprocfs_jobstats_seq_show(struct seq_file *p, void *v)
-{
- struct job_stat *job = v;
- struct lprocfs_stats *s;
- struct lprocfs_counter ret;
- struct lprocfs_counter *cntr;
- struct lprocfs_counter_header *cntr_header;
- int i;
-
- if (v == SEQ_START_TOKEN) {
- seq_printf(p, "job_stats:\n");
- return 0;
- }
-
- seq_printf(p, "- %-16s %s\n", "job_id:", job->js_jobid);
- seq_printf(p, " %-16s %ld\n", "snapshot_time:", job->js_timestamp);
-
- s = job->js_stats;
- for (i = 0; i < s->ls_num; i++) {
- cntr = lprocfs_stats_counter_get(s, 0, i);
- cntr_header = &s->ls_cnt_header[i];
- lprocfs_stats_collect(s, i, &ret);
-
- seq_printf(p, " %s:%.*s { samples: %11"LPF64"u",
- cntr_header->lc_name,
- width(cntr_header->lc_name, 15), spaces,
- ret.lc_count);
- if (cntr_header->lc_units[0] != '\0')
- seq_printf(p, ", unit: %5s", cntr_header->lc_units);
-
- if (cntr_header->lc_config & LPROCFS_CNTR_AVGMINMAX) {
- seq_printf(p, ", min:%8"LPF64"u, max:%8"LPF64"u,"
- " sum:%16"LPF64"u",
- ret.lc_count ? ret.lc_min : 0,
- ret.lc_count ? ret.lc_max : 0,
- ret.lc_count ? ret.lc_sum : 0);
- }
- if (cntr_header->lc_config & LPROCFS_CNTR_STDDEV) {
- seq_printf(p, ", sumsq: %18"LPF64"u",
- ret.lc_count ? ret.lc_sumsquare : 0);
- }
-
- seq_printf(p, " }\n");
-
- }
- return 0;
-}
-
-struct seq_operations lprocfs_jobstats_seq_sops = {
- start: lprocfs_jobstats_seq_start,
- stop: lprocfs_jobstats_seq_stop,
- next: lprocfs_jobstats_seq_next,
- show: lprocfs_jobstats_seq_show,
-};
-
-static int lprocfs_jobstats_seq_open(struct inode *inode, struct file *file)
-{
- struct seq_file *seq;
- int rc;
-
- rc = seq_open(file, &lprocfs_jobstats_seq_sops);
- if (rc)
- return rc;
- seq = file->private_data;
- seq->private = PDE_DATA(inode);
- return 0;
-}
-
-static ssize_t lprocfs_jobstats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
-{
- struct seq_file *seq = file->private_data;
- struct obd_job_stats *stats = seq->private;
- char jobid[JOBSTATS_JOBID_SIZE];
- int all = 0;
- struct job_stat *job;
-
- if (!memcmp(buf, "clear", strlen("clear"))) {
- all = 1;
- } else if (len < JOBSTATS_JOBID_SIZE) {
- memset(jobid, 0, JOBSTATS_JOBID_SIZE);
- /* Trim '\n' if any */
- if (buf[len - 1] == '\n')
- memcpy(jobid, buf, len - 1);
- else
- memcpy(jobid, buf, len);
- } else {
- return -EINVAL;
- }
-
- LASSERT(stats->ojs_hash);
- if (all) {
- time_t oldest = 0;
- cfs_hash_for_each_safe(stats->ojs_hash, job_iter_callback,
- &oldest);
- return len;
- }
-
- if (!strlen(jobid))
- return -EINVAL;
-
- job = cfs_hash_lookup(stats->ojs_hash, jobid);
- if (!job)
- return -EINVAL;
-
- cfs_hash_del_key(stats->ojs_hash, jobid);
-
- job_putref(job);
- return len;
-}
-
-struct file_operations lprocfs_jobstats_seq_fops = {
- .owner = THIS_MODULE,
- .open = lprocfs_jobstats_seq_open,
- .read = seq_read,
- .write = lprocfs_jobstats_seq_write,
- .llseek = seq_lseek,
- .release = lprocfs_seq_release,
-};
-
-int lprocfs_job_stats_init(struct obd_device *obd, int cntr_num,
- cntr_init_callback init_fn)
-{
- struct proc_dir_entry *entry;
- struct obd_job_stats *stats;
- ENTRY;
-
- LASSERT(obd->obd_proc_entry != NULL);
- LASSERT(obd->obd_type->typ_name);
-
- if (strcmp(obd->obd_type->typ_name, LUSTRE_MDT_NAME) &&
- strcmp(obd->obd_type->typ_name, LUSTRE_OST_NAME)) {
- CERROR("Invalid obd device type.\n");
- RETURN(-EINVAL);
- }
- stats = &obd->u.obt.obt_jobstats;
-
- LASSERT(stats->ojs_hash == NULL);
- stats->ojs_hash = cfs_hash_create("JOB_STATS",
- HASH_JOB_STATS_CUR_BITS,
- HASH_JOB_STATS_MAX_BITS,
- HASH_JOB_STATS_BKT_BITS, 0,
- CFS_HASH_MIN_THETA,
- CFS_HASH_MAX_THETA,
- &job_stats_hash_ops,
- CFS_HASH_DEFAULT);
- if (stats->ojs_hash == NULL)
- RETURN(-ENOMEM);
-
- INIT_LIST_HEAD(&stats->ojs_list);
- rwlock_init(&stats->ojs_lock);
- stats->ojs_cntr_num = cntr_num;
- stats->ojs_cntr_init_fn = init_fn;
- stats->ojs_cleanup_interval = 600; /* 10 mins by default */
- stats->ojs_last_cleanup = cfs_time_current_sec();
-
- entry = proc_create_data("job_stats", 0644, obd->obd_proc_entry,
- &lprocfs_jobstats_seq_fops, stats);
- if (entry)
- RETURN(0);
- else
- RETURN(-ENOMEM);
-}
-EXPORT_SYMBOL(lprocfs_job_stats_init);
-
-int lprocfs_rd_job_interval(struct seq_file *m, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- struct obd_job_stats *stats;
-
- LASSERT(obd != NULL);
- stats = &obd->u.obt.obt_jobstats;
- return seq_printf(m, "%d\n", stats->ojs_cleanup_interval);
-}
-EXPORT_SYMBOL(lprocfs_rd_job_interval);
-
-int lprocfs_wr_job_interval(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- struct obd_device *obd = (struct obd_device *)data;
- struct obd_job_stats *stats;
- int val, rc;
-
- LASSERT(obd != NULL);
- stats = &obd->u.obt.obt_jobstats;
-
- rc = lprocfs_write_helper(buffer, count, &val);
- if (rc)
- return rc;
-
- stats->ojs_cleanup_interval = val;
- lprocfs_job_cleanup(stats, true);
-
- return count;
-
-}
-EXPORT_SYMBOL(lprocfs_wr_job_interval);
-
-#endif /* LPROCFS*/
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