/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * 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.
*
- * Lustre 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 for more details.
+ * 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
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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
*
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_CLASS
-#include <linux/obd_support.h>
-#include <linux/obd_class.h>
-#include <linux/lprocfs.h>
-#include <linux/string.h>
-#include <linux/lustre_lib.h>
-
-int rd_uuid(char* page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len=0;
- struct obd_device* dev=(struct obd_device*)data;
- len+=snprintf(page, count, "%s\n", dev->obd_uuid);
- return len;
+#include <linux/version.h>
+#include <asm/statfs.h>
+#include <obd_cksum.h>
+#include <obd_class.h>
+#include <lprocfs_status.h>
+#include <linux/seq_file.h>
+#include "osc_internal.h"
+
+#ifdef LPROCFS
+static int osc_rd_active(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *dev = data;
+ int rc;
+
+ LPROCFS_CLIMP_CHECK(dev);
+ rc = snprintf(page, count, "%d\n", !dev->u.cli.cl_import->imp_deactive);
+ LPROCFS_CLIMP_EXIT(dev);
+ return rc;
}
-int rd_blksize(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+
+static int osc_wr_active(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- return 0;
+ struct obd_device *dev = data;
+ int val, rc;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+ if (val < 0 || val > 1)
+ return -ERANGE;
+
+ LPROCFS_CLIMP_CHECK(dev);
+ /* opposite senses */
+ if (dev->u.cli.cl_import->imp_deactive == val)
+ rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
+ else
+ CDEBUG(D_CONFIG, "activate %d: ignoring repeat request\n", val);
+
+ LPROCFS_CLIMP_EXIT(dev);
+ return count;
}
-int rd_blktotal(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+
+static int osc_rd_max_pages_per_rpc(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
- return 0;
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ int rc;
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ rc = snprintf(page, count, "%d\n", cli->cl_max_pages_per_rpc);
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+ return rc;
}
-int rd_blkfree(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static int osc_wr_max_pages_per_rpc(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- return 0;
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
+ int val, rc;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ LPROCFS_CLIMP_CHECK(dev);
+ if (val < 1 || val > ocd->ocd_brw_size >> CFS_PAGE_SHIFT) {
+ LPROCFS_CLIMP_EXIT(dev);
+ return -ERANGE;
+ }
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ cli->cl_max_pages_per_rpc = val;
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+
+ LPROCFS_CLIMP_EXIT(dev);
+ return count;
}
-int rd_kbfree(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static int osc_rd_max_rpcs_in_flight(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
- return 0;
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ int rc;
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ rc = snprintf(page, count, "%u\n", cli->cl_max_rpcs_in_flight);
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+ return rc;
}
-int rd_numobjects(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static int osc_wr_max_rpcs_in_flight(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- return 0;
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ struct ptlrpc_request_pool *pool = cli->cl_import->imp_rq_pool;
+ int val, rc;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ if (val < 1 || val > OSC_MAX_RIF_MAX)
+ return -ERANGE;
+
+ LPROCFS_CLIMP_CHECK(dev);
+ if (pool && val > cli->cl_max_rpcs_in_flight)
+ pool->prp_populate(pool, val-cli->cl_max_rpcs_in_flight);
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ cli->cl_max_rpcs_in_flight = val;
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+
+ LPROCFS_CLIMP_EXIT(dev);
+ return count;
}
-int rd_objfree(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static int osc_rd_max_dirty_mb(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
{
- return 0;
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ long val;
+ int mult;
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ val = cli->cl_dirty_max;
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+
+ mult = 1 << 20;
+ return lprocfs_read_frac_helper(page, count, val, mult);
}
-int rd_objgroups(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+static int osc_wr_max_dirty_mb(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
- return 0;
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ int pages_number, mult, rc;
+
+ mult = 1 << (20 - CFS_PAGE_SHIFT);
+ rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
+ if (rc)
+ return rc;
+
+ if (pages_number < 0 ||
+ pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - CFS_PAGE_SHIFT) ||
+ pages_number > num_physpages / 4) /* 1/4 of RAM */
+ return -ERANGE;
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ cli->cl_dirty_max = (obd_count)(pages_number << CFS_PAGE_SHIFT);
+ osc_wake_cache_waiters(cli);
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+
+ return count;
+}
+
+static int osc_rd_cur_dirty_bytes(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ int rc;
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ rc = snprintf(page, count, "%lu\n", cli->cl_dirty);
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+ return rc;
+}
+
+static int osc_rd_cur_grant_bytes(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *dev = data;
+ struct client_obd *cli = &dev->u.cli;
+ int rc;
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+ rc = snprintf(page, count, "%lu\n", cli->cl_avail_grant);
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+ return rc;
+}
+
+static int osc_rd_create_count(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = data;
+
+ if (obd == NULL)
+ return 0;
+
+ return snprintf(page, count, "%d\n",
+ obd->u.cli.cl_oscc.oscc_grow_count);
+}
+
+/**
+ * Set OSC creator's osc_creator::oscc_grow_count
+ *
+ * \param file proc file
+ * \param buffer buffer containing the value
+ * \param count buffer size
+ * \param data obd device
+ *
+ * \retval \a count
+ */
+static int osc_wr_create_count(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct obd_device *obd = data;
+ int val, rc, i;
+
+ if (obd == NULL)
+ return 0;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ /* The MDT ALWAYS needs to limit the precreate count to
+ * OST_MAX_PRECREATE, and the constant cannot be changed
+ * because it is a value shared between the OSC and OST
+ * that is the maximum possible number of objects that will
+ * ever be handled by MDT->OST recovery processing.
+ *
+ * If the OST ever gets a request to delete more orphans,
+ * this implies that something has gone badly on the MDT
+ * and the OST will refuse to delete so much data from the
+ * filesystem as a safety measure. */
+ if (val < OST_MIN_PRECREATE || val > OST_MAX_PRECREATE)
+ return -ERANGE;
+ if (val > obd->u.cli.cl_oscc.oscc_max_grow_count)
+ return -ERANGE;
+
+ for (i = 1; (i << 1) <= val; i <<= 1)
+ ;
+ obd->u.cli.cl_oscc.oscc_grow_count = i;
+
+ return count;
+}
+
+/**
+ * Read OSC creator's osc_creator::oscc_max_grow_count
+ *
+ * \param page buffer to hold the returning string
+ * \param start
+ * \param off
+ * \param count
+ * \param eof
+ * proc read function parameters, please refer to kernel
+ * code fs/proc/generic.c proc_file_read()
+ * \param data obd device
+ *
+ * \retval number of characters printed.
+ */
+static int osc_rd_max_create_count(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *obd = data;
+
+ if (obd == NULL)
+ return 0;
+
+ return snprintf(page, count, "%d\n",
+ obd->u.cli.cl_oscc.oscc_max_grow_count);
+}
+
+/**
+ * Set OSC creator's osc_creator::oscc_max_grow_count
+ *
+ * \param file proc file
+ * \param buffer buffer containing the value
+ * \param count buffer size
+ * \param data obd device
+ *
+ * \retval \a count
+ */
+static int osc_wr_max_create_count(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct obd_device *obd = data;
+ int val, rc;
+
+ if (obd == NULL)
+ return 0;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ if (val < 0)
+ return -ERANGE;
+ if (val > OST_MAX_PRECREATE)
+ return -ERANGE;
+
+ if (obd->u.cli.cl_oscc.oscc_grow_count > val)
+ obd->u.cli.cl_oscc.oscc_grow_count = val;
+
+ obd->u.cli.cl_oscc.oscc_max_grow_count = val;
+
+ return count;
+}
+
+static int osc_rd_prealloc_next_id(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *obd = data;
+
+ if (obd == NULL)
+ return 0;
+
+ return snprintf(page, count, LPU64"\n",
+ obd->u.cli.cl_oscc.oscc_next_id);
+}
+
+static int osc_rd_prealloc_last_id(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct obd_device *obd = data;
+
+ if (obd == NULL)
+ return 0;
+
+ return snprintf(page, count, LPU64"\n",
+ obd->u.cli.cl_oscc.oscc_last_id);
+}
+
+static int osc_rd_checksum(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = data;
+
+ if (obd == NULL)
+ return 0;
+
+ return snprintf(page, count, "%d\n",
+ obd->u.cli.cl_checksum ? 1 : 0);
}
-int rd_server_uuid(char* page, char **start, off_t off,
- int count, int *eof, void *data)
+
+static int osc_wr_checksum(struct file *file, const char *buffer,
+ unsigned long count, void *data)
{
-
- struct obd_device* temp=(struct obd_device*)data;
- struct client_obd* cli=&temp->u.cli;
- int len=0;
- len+=snprintf(page, count, "%s\n",cli->cl_target_uuid);
+ struct obd_device *obd = data;
+ int val, rc;
+
+ if (obd == NULL)
+ return 0;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ obd->u.cli.cl_checksum = (val ? 1 : 0);
+
+ return count;
+}
+
+static int osc_rd_checksum_type(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = data;
+ int i, len =0;
+ DECLARE_CKSUM_NAME;
+
+ if (obd == NULL)
+ return 0;
+
+ for (i = 0; i < ARRAY_SIZE(cksum_name) && len < count; i++) {
+ if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
+ continue;
+ if (obd->u.cli.cl_cksum_type == (1 << i))
+ len += snprintf(page + len, count - len, "[%s] ",
+ cksum_name[i]);
+ else
+ len += snprintf(page + len, count - len, "%s ",
+ cksum_name[i]);
+ }
+ if (len < count)
+ len += sprintf(page + len, "\n");
return len;
+}
+
+static int osc_wd_checksum_type(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct obd_device *obd = data;
+ int i;
+ DECLARE_CKSUM_NAME;
+ char kernbuf[10];
+
+ if (obd == NULL)
+ return 0;
+
+ if (count > sizeof(kernbuf) - 1)
+ return -EINVAL;
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+ if (count > 0 && kernbuf[count - 1] == '\n')
+ kernbuf[count - 1] = '\0';
+ else
+ kernbuf[count] = '\0';
+
+ for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
+ if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
+ continue;
+ if (!strcmp(kernbuf, cksum_name[i])) {
+ obd->u.cli.cl_cksum_type = 1 << i;
+ return count;
+ }
+ }
+ return -EINVAL;
+}
+
+static int osc_rd_resend_count(char *page, char **start, off_t off, int count,
+ int *eof, void *data)
+{
+ struct obd_device *obd = data;
+
+ return snprintf(page, count, "%u\n", atomic_read(&obd->u.cli.cl_resends));
+}
+
+static int osc_wr_resend_count(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct obd_device *obd = data;
+ int val, rc;
-
-}
-int rd_conn_uuid(char* page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- struct obd_device* temp=(struct obd_device*)data;
- struct client_obd* cli=&temp->u.cli;
- struct obd_import* imp=&cli->cl_import;
- int len=0;
- len+=snprintf(page, count, "%s\n",\
- imp->imp_connection->c_remote_uuid);
- return len;
-
-}
-
-lprocfs_vars_t snmp_var_nm_1[]={
- {"snmp/uuid", rd_uuid, 0},
- {"snmp/f_blocksize",rd_blksize, 0},
- {"snmp/f_blockstotal",rd_blktotal, 0},
- {"snmp/f_blocksfree",rd_blkfree, 0},
- {"snmp/f_kbytesfree", rd_kbfree, 0},
- {"snmp/f_objects", rd_numobjects, 0},
- {"snmp/f_objectsfree", rd_objfree, 0},
- {"snmp/f_objectgroups", rd_objgroups, 0},
- {"snmp/ost_server_uuid", rd_server_uuid, 0},
- {"snmp/ost_conn_uuid", rd_conn_uuid, 0},
- {0}
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ if (val < 0)
+ return -EINVAL;
+
+ atomic_set(&obd->u.cli.cl_resends, val);
+
+ return count;
+}
+
+static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
+ { "uuid", lprocfs_rd_uuid, 0, 0 },
+ { "ping", 0, lprocfs_wr_ping, 0, 0, 0222 },
+ { "connect_flags", lprocfs_rd_connect_flags, 0, 0 },
+ { "blocksize", lprocfs_rd_blksize, 0, 0 },
+ { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
+ { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
+ { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
+ { "filestotal", lprocfs_rd_filestotal, 0, 0 },
+ { "filesfree", lprocfs_rd_filesfree, 0, 0 },
+ //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
+ { "ost_server_uuid", lprocfs_rd_server_uuid, 0, 0 },
+ { "ost_conn_uuid", lprocfs_rd_conn_uuid, 0, 0 },
+ { "active", osc_rd_active,
+ osc_wr_active, 0 },
+ { "max_pages_per_rpc", osc_rd_max_pages_per_rpc,
+ osc_wr_max_pages_per_rpc, 0 },
+ { "max_rpcs_in_flight", osc_rd_max_rpcs_in_flight,
+ osc_wr_max_rpcs_in_flight, 0 },
+ { "max_dirty_mb", osc_rd_max_dirty_mb, osc_wr_max_dirty_mb, 0 },
+ { "cur_dirty_bytes", osc_rd_cur_dirty_bytes, 0, 0 },
+ { "cur_grant_bytes", osc_rd_cur_grant_bytes, 0, 0 },
+ { "create_count", osc_rd_create_count, osc_wr_create_count, 0 },
+ { "max_create_count", osc_rd_max_create_count,
+ osc_wr_max_create_count, 0},
+ { "prealloc_next_id", osc_rd_prealloc_next_id, 0, 0 },
+ { "prealloc_last_id", osc_rd_prealloc_last_id, 0, 0 },
+ { "checksums", osc_rd_checksum, osc_wr_checksum, 0 },
+ { "checksum_type", osc_rd_checksum_type, osc_wd_checksum_type, 0 },
+ { "resend_count", osc_rd_resend_count, osc_wr_resend_count, 0},
+ { "timeouts", lprocfs_rd_timeouts, 0, 0 },
+ { "import", lprocfs_rd_import, 0, 0 },
+ { 0 }
};
+
+static struct lprocfs_vars lprocfs_osc_module_vars[] = {
+ { "num_refs", lprocfs_rd_numrefs, 0, 0 },
+ { 0 }
+};
+
+#define pct(a,b) (b ? a * 100 / b : 0)
+
+static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
+{
+ struct timeval now;
+ struct obd_device *dev = seq->private;
+ struct client_obd *cli = &dev->u.cli;
+ unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
+ int i;
+
+ do_gettimeofday(&now);
+
+ client_obd_list_lock(&cli->cl_loi_list_lock);
+
+ seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
+ now.tv_sec, now.tv_usec);
+ seq_printf(seq, "read RPCs in flight: %d\n",
+ cli->cl_r_in_flight);
+ seq_printf(seq, "write RPCs in flight: %d\n",
+ cli->cl_w_in_flight);
+ seq_printf(seq, "pending write pages: %d\n",
+ cli->cl_pending_w_pages);
+ seq_printf(seq, "pending read pages: %d\n",
+ cli->cl_pending_r_pages);
+
+ seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
+ seq_printf(seq, "pages per rpc rpcs %% cum %% |");
+ seq_printf(seq, " rpcs %% cum %%\n");
+
+ read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
+ write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
+
+ read_cum = 0;
+ write_cum = 0;
+ for (i = 0; i < OBD_HIST_MAX; i++) {
+ unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
+ unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
+ read_cum += r;
+ write_cum += w;
+ seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
+ 1 << i, r, pct(r, read_tot),
+ pct(read_cum, read_tot), w,
+ pct(w, write_tot),
+ pct(write_cum, write_tot));
+ if (read_cum == read_tot && write_cum == write_tot)
+ break;
+ }
+
+ seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
+ seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
+ seq_printf(seq, " rpcs %% cum %%\n");
+
+ read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
+ write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
+
+ read_cum = 0;
+ write_cum = 0;
+ for (i = 0; i < OBD_HIST_MAX; i++) {
+ unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
+ unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
+ read_cum += r;
+ write_cum += w;
+ seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
+ i, r, pct(r, read_tot),
+ pct(read_cum, read_tot), w,
+ pct(w, write_tot),
+ pct(write_cum, write_tot));
+ if (read_cum == read_tot && write_cum == write_tot)
+ break;
+ }
+
+ seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
+ seq_printf(seq, "offset rpcs %% cum %% |");
+ seq_printf(seq, " rpcs %% cum %%\n");
+
+ read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
+ write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
+
+ read_cum = 0;
+ write_cum = 0;
+ for (i = 0; i < OBD_HIST_MAX; i++) {
+ unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
+ unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
+ read_cum += r;
+ write_cum += w;
+ seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
+ (i == 0) ? 0 : 1 << (i - 1),
+ r, pct(r, read_tot), pct(read_cum, read_tot),
+ w, pct(w, write_tot), pct(write_cum, write_tot));
+ if (read_cum == read_tot && write_cum == write_tot)
+ break;
+ }
+
+ client_obd_list_unlock(&cli->cl_loi_list_lock);
+
+ return 0;
+}
+#undef pct
+
+static ssize_t osc_rpc_stats_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct obd_device *dev = seq->private;
+ struct client_obd *cli = &dev->u.cli;
+
+ lprocfs_oh_clear(&cli->cl_read_rpc_hist);
+ lprocfs_oh_clear(&cli->cl_write_rpc_hist);
+ lprocfs_oh_clear(&cli->cl_read_page_hist);
+ lprocfs_oh_clear(&cli->cl_write_page_hist);
+ lprocfs_oh_clear(&cli->cl_read_offset_hist);
+ lprocfs_oh_clear(&cli->cl_write_offset_hist);
+
+ return len;
+}
+
+LPROC_SEQ_FOPS(osc_rpc_stats);
+
+int lproc_osc_attach_seqstat(struct obd_device *dev)
+{
+ return lprocfs_obd_seq_create(dev, "rpc_stats", 0444,
+ &osc_rpc_stats_fops, dev);
+}
+
+void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars)
+{
+ lvars->module_vars = lprocfs_osc_module_vars;
+ lvars->obd_vars = lprocfs_osc_obd_vars;
+}
+#endif /* LPROCFS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff