diff options
author | phk <phk@FreeBSD.org> | 2003-03-18 09:42:33 +0000 |
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committer | phk <phk@FreeBSD.org> | 2003-03-18 09:42:33 +0000 |
commit | abd9cc6d2bcbbc28d5b00a910e3cc51625255cbf (patch) | |
tree | 1c1f50af00e2e7b30b7d8bd0d202a205e3b2fa40 | |
parent | eef257a93e011a4e140ebc8b497d65adb03449bb (diff) | |
download | FreeBSD-src-abd9cc6d2bcbbc28d5b00a910e3cc51625255cbf.zip FreeBSD-src-abd9cc6d2bcbbc28d5b00a910e3cc51625255cbf.tar.gz |
Retire the GEOM private statistics code and use devstat instead.
-rw-r--r-- | sys/geom/geom.h | 4 | ||||
-rw-r--r-- | sys/geom/geom_int.h | 5 | ||||
-rw-r--r-- | sys/geom/geom_io.c | 68 | ||||
-rw-r--r-- | sys/geom/geom_kern.c | 4 | ||||
-rw-r--r-- | sys/geom/geom_stats.c | 137 | ||||
-rw-r--r-- | sys/geom/geom_stats.h | 87 | ||||
-rw-r--r-- | sys/geom/geom_subr.c | 11 |
7 files changed, 16 insertions, 300 deletions
diff --git a/sys/geom/geom.h b/sys/geom/geom.h index 6aba180..169da26 100644 --- a/sys/geom/geom.h +++ b/sys/geom/geom.h @@ -151,7 +151,7 @@ struct g_consumer { int acr, acw, ace; struct g_event *event; int spoiled; - struct g_stat *stat; + struct devstat *stat; u_int nstart, nend; }; @@ -173,7 +173,7 @@ struct g_provider { u_int sectorsize; u_int stripesize; u_int stripeoffset; - struct g_stat *stat; + struct devstat *stat; u_int nstart, nend; u_int flags; #define G_PF_CANDELETE 0x1 diff --git a/sys/geom/geom_int.h b/sys/geom/geom_int.h index cd67d19..81f8069 100644 --- a/sys/geom/geom_int.h +++ b/sys/geom/geom_int.h @@ -103,8 +103,3 @@ void g_io_schedule_up(struct thread *tp); /* geom_kern.c / geom_kernsim.c */ void g_init(void); - -/* geom_stats.c */ -void g_stat_init(void); -struct g_stat *g_stat_new(void *id); -void g_stat_delete(struct g_stat *); diff --git a/sys/geom/geom_io.c b/sys/geom/geom_io.c index e67738a..d631670 100644 --- a/sys/geom/geom_io.c +++ b/sys/geom/geom_io.c @@ -54,7 +54,7 @@ #include <sys/errno.h> #include <geom/geom.h> #include <geom/geom_int.h> -#include <geom/geom_stats.h> +#include <sys/devicestat.h> static struct g_bioq g_bio_run_down; static struct g_bioq g_bio_run_up; @@ -264,7 +264,6 @@ void g_io_request(struct bio *bp, struct g_consumer *cp) { struct g_provider *pp; - struct bintime bt; pp = cp->provider; KASSERT(cp != NULL, ("NULL cp in g_io_request")); @@ -278,14 +277,8 @@ g_io_request(struct bio *bp, struct g_consumer *cp) bp->bio_completed = 0; if (g_collectstats) { - binuptime(&bt); - bp->bio_t0 = bt; - if (cp->nstart == cp->nend) - cp->stat->wentbusy = bt; /* Consumer is idle */ - if (pp->nstart == pp->nend) - pp->stat->wentbusy = bt; /* Provider is idle */ - cp->stat->nop++; - pp->stat->nop++; + devstat_start_transaction_bio(cp->stat, bp); + devstat_start_transaction_bio(pp->stat, bp); } cp->nstart++; pp->nstart++; @@ -302,8 +295,6 @@ g_io_deliver(struct bio *bp, int error) { struct g_consumer *cp; struct g_provider *pp; - struct bintime t1, dt; - int idx; cp = bp->bio_from; pp = bp->bio_to; @@ -317,56 +308,11 @@ g_io_deliver(struct bio *bp, int error) bp, cp, cp->geom->name, pp, pp->name, bp->bio_cmd, error, (intmax_t)bp->bio_offset, (intmax_t)bp->bio_length); + bp->bio_bcount = bp->bio_length; if (g_collectstats) { - switch (bp->bio_cmd) { - case BIO_READ: idx = G_STAT_IDX_READ; break; - case BIO_WRITE: idx = G_STAT_IDX_WRITE; break; - case BIO_DELETE: idx = G_STAT_IDX_DELETE; break; - case BIO_GETATTR: idx = -1; break; - case BIO_SETATTR: idx = -1; break; - default: - panic("unknown bio_cmd in g_io_deliver"); - break; - } - binuptime(&t1); - /* Raise the "inconsistent" flag for userland */ - atomic_add_acq_int(&cp->stat->seq0, 1); - atomic_add_acq_int(&pp->stat->seq0, 1); - if (idx >= 0) { - /* Account the service time */ - dt = t1; - bintime_sub(&dt, &bp->bio_t0); - bintime_add(&cp->stat->ops[idx].dt, &dt); - bintime_add(&pp->stat->ops[idx].dt, &dt); - /* ... and the metrics */ - pp->stat->ops[idx].nbyte += bp->bio_completed; - cp->stat->ops[idx].nbyte += bp->bio_completed; - pp->stat->ops[idx].nop++; - cp->stat->ops[idx].nop++; - /* ... and any errors */ - if (error == ENOMEM) { - cp->stat->ops[idx].nmem++; - pp->stat->ops[idx].nmem++; - } else if (error != 0) { - cp->stat->ops[idx].nerr++; - pp->stat->ops[idx].nerr++; - } - } - /* Account for busy time on the consumer */ - dt = t1; - bintime_sub(&dt, &cp->stat->wentbusy); - bintime_add(&cp->stat->bt, &dt); - cp->stat->wentbusy = t1; - /* Account for busy time on the provider */ - dt = t1; - bintime_sub(&dt, &pp->stat->wentbusy); - bintime_add(&pp->stat->bt, &dt); - pp->stat->wentbusy = t1; - /* Mark the structures as consistent again */ - atomic_add_acq_int(&cp->stat->seq1, 1); - atomic_add_acq_int(&pp->stat->seq1, 1); - cp->stat->nend++; - pp->stat->nend++; + bp->bio_resid = bp->bio_bcount - bp->bio_completed; + devstat_end_transaction_bio(cp->stat, bp); + devstat_end_transaction_bio(pp->stat, bp); } cp->nend++; pp->nend++; diff --git a/sys/geom/geom_kern.c b/sys/geom/geom_kern.c index 6f2dc65..d8ab014 100644 --- a/sys/geom/geom_kern.c +++ b/sys/geom/geom_kern.c @@ -49,7 +49,6 @@ #include <sys/sbuf.h> #include <geom/geom.h> #include <geom/geom_int.h> -#include <geom/geom_stats.h> MALLOC_DEFINE(M_GEOM, "GEOM", "Geom data structures"); @@ -144,7 +143,6 @@ void g_init(void) { sx_init(&topology_lock, "GEOM topology"); - g_stat_init(); g_io_init(); g_event_init(); mtx_lock(&Giant); @@ -237,5 +235,3 @@ SYSCTL_INT(_debug_sizeof, OID_AUTO, g_bioq, CTLFLAG_RD, 0, sizeof(struct g_bioq), ""); SYSCTL_INT(_debug_sizeof, OID_AUTO, g_event, CTLFLAG_RD, 0, sizeof(struct g_event), ""); -SYSCTL_INT(_debug_sizeof, OID_AUTO, g_stat, CTLFLAG_RD, - 0, sizeof(struct g_stat), ""); diff --git a/sys/geom/geom_stats.c b/sys/geom/geom_stats.c deleted file mode 100644 index 03e1c75..0000000 --- a/sys/geom/geom_stats.c +++ /dev/null @@ -1,137 +0,0 @@ -/*- - * Copyright (c) 2002 Poul-Henning Kamp - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the authors may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#include "opt_geom.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/sysctl.h> -#include <sys/bio.h> -#include <sys/conf.h> -#include <sys/disk.h> -#include <sys/malloc.h> -#include <sys/sysctl.h> -#include <vm/vm.h> -#include <vm/pmap.h> - -#include <sys/lock.h> -#include <sys/mutex.h> -#include <geom/geom.h> -#include <geom/geom_int.h> -#include <geom/geom_stats.h> - -#define statsperpage (PAGE_SIZE / sizeof(struct g_stat)) - -struct statspage { - TAILQ_ENTRY(statspage) list; - struct g_stat *stat; - u_int nfree; -}; - -static TAILQ_HEAD(, statspage) pagelist = TAILQ_HEAD_INITIALIZER(pagelist); - -struct g_stat * -g_stat_new(void *id) -{ - struct g_stat *gsp; - struct statspage *spp; - u_int u; - - g_topology_assert(); - TAILQ_FOREACH(spp, &pagelist, list) { - if (spp->nfree > 0) - break; - } - if (spp == NULL) { - spp = g_malloc(sizeof *spp, M_ZERO | M_WAITOK); - TAILQ_INSERT_TAIL(&pagelist, spp, list); - spp->stat = g_malloc(PAGE_SIZE, M_ZERO | M_WAITOK); - spp->nfree = statsperpage; - } - gsp = spp->stat; - for (u = 0; u < statsperpage; u++) { - if (gsp->id == NULL) - break; - gsp++; - } - spp->nfree--; - gsp->id = id; - return (gsp); -} - -void -g_stat_delete(struct g_stat *gsp) -{ - struct statspage *spp; - - bzero(gsp, sizeof *gsp); - TAILQ_FOREACH(spp, &pagelist, list) { - if (gsp >= spp->stat && gsp < (spp->stat + statsperpage)) { - spp->nfree++; - return; - } - } -} - -static d_mmap_t g_stat_mmap; - -static struct cdevsw geom_stats_cdevsw = { - .d_open = nullopen, - .d_close = nullclose, - .d_mmap = g_stat_mmap, - .d_name = "g_stats", - .d_maj = GEOM_MAJOR, -}; - -static int -g_stat_mmap(dev_t dev, vm_offset_t offset, vm_offset_t *paddr, int nprot) -{ - struct statspage *spp; - - if (nprot != VM_PROT_READ) - return (-1); - TAILQ_FOREACH(spp, &pagelist, list) { - if (offset == 0) { - *paddr = vtophys(spp->stat); - return (0); - } - offset -= PAGE_SIZE; - } - return (-1); -} - -void -g_stat_init(void) -{ - make_dev(&geom_stats_cdevsw, GEOM_MINOR_STATS, - UID_ROOT, GID_WHEEL, 0400, GEOM_STATS_DEVICE); -} diff --git a/sys/geom/geom_stats.h b/sys/geom/geom_stats.h deleted file mode 100644 index 1c13adf..0000000 --- a/sys/geom/geom_stats.h +++ /dev/null @@ -1,87 +0,0 @@ -/*- - * Copyright (c) 2002 Poul-Henning Kamp - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The names of the authors may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#ifndef _GEOM_GEOM_STATS_H_ -#define _GEOM_GEOM_STATS_H_ - -#define GEOM_STATS_DEVICE "geom.stats" - -/* - * A g_stat contains the statistics the kernel collect on consumers and - * providers. See libgeom(3) for how to get hold of these. - */ -struct g_stat { - int seq0; - /* - * Sequence number, used with seq1 to determine - * if snapshot is consistent. - */ - - void *id; - /* GEOM-identifier for the consumer/provider */ - - uint64_t nop; - /* Number of requests started */ - - uint64_t nend; - /* Number of requests completed */ - - struct bintime bt; - /* Accumulated busy time */ - - struct bintime wentbusy; - /* Busy time accounted for until here */ - struct { - uint64_t nop; - /* Number of requests completed */ - - uint64_t nbyte; - /* Number of bytes completed */ - - uint64_t nmem; - /* Number of ENOMEM request errors */ - - uint64_t nerr; - /* Number of other request errors */ - - struct bintime dt; - /* Accumulated request processing time */ - - } ops[3]; - -#define G_STAT_IDX_READ 0 -#define G_STAT_IDX_WRITE 1 -#define G_STAT_IDX_DELETE 2 - - int seq1; - /* See seq0 */ -}; - -#endif /* _GEOM_GEOM_STATS_H_ */ diff --git a/sys/geom/geom_subr.c b/sys/geom/geom_subr.c index e76a71d..b5c1861 100644 --- a/sys/geom/geom_subr.c +++ b/sys/geom/geom_subr.c @@ -46,6 +46,7 @@ #include <err.h> #else #include <sys/systm.h> +#include <sys/devicestat.h> #include <sys/kernel.h> #include <sys/malloc.h> #include <sys/bio.h> @@ -144,7 +145,8 @@ g_new_consumer(struct g_geom *gp) cp = g_malloc(sizeof *cp, M_WAITOK | M_ZERO); cp->protect = 0x020016602; cp->geom = gp; - cp->stat = g_stat_new(cp); + cp->stat = devstat_new_entry(cp, -1, 0, DEVSTAT_ALL_SUPPORTED, + DEVSTAT_TYPE_DIRECT, DEVSTAT_PRIORITY_MAX); LIST_INSERT_HEAD(&gp->consumer, cp, consumer); return(cp); } @@ -161,7 +163,7 @@ g_destroy_consumer(struct g_consumer *cp) KASSERT (cp->acw == 0, ("g_destroy_consumer with acw")); KASSERT (cp->ace == 0, ("g_destroy_consumer with ace")); LIST_REMOVE(cp, consumer); - g_stat_delete(cp->stat); + devstat_remove_entry(cp->stat); g_free(cp); } @@ -185,7 +187,8 @@ g_new_providerf(struct g_geom *gp, const char *fmt, ...) LIST_INIT(&pp->consumers); pp->error = ENXIO; pp->geom = gp; - pp->stat = g_stat_new(pp); + pp->stat = devstat_new_entry(pp, -1, 0, DEVSTAT_ALL_SUPPORTED, + DEVSTAT_TYPE_DIRECT, DEVSTAT_PRIORITY_MAX); LIST_INSERT_HEAD(&gp->provider, pp, provider); g_nproviders++; g_post_event(EV_NEW_PROVIDER, NULL, NULL, pp, NULL); @@ -216,7 +219,7 @@ g_destroy_provider(struct g_provider *pp) g_nproviders--; LIST_REMOVE(pp, provider); gp = pp->geom; - g_stat_delete(pp->stat); + devstat_remove_entry(pp->stat); g_free(pp); if (!(gp->flags & G_GEOM_WITHER)) return; |