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Lines 43-45
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#elif HAVE_LIBKSTAT |
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#elif HAVE_LIBKSTAT |
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kstat_t *ksp_chain; |
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kstat_t *ksp_chain; |
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@@ -505,6 +527,114 @@ static int disk_read (void) |
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IOObjectRelease (disk_list); |
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/* #endif HAVE_IOKIT_IOKITLIB_H */ |
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+#elif KERNEL_FREEBSD |
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+ int retry, dirty; |
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+ |
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+ void *snap = NULL; |
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+ struct devstat *snap_iter; |
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+ |
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+ struct gident *geom_id; |
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+ |
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+ const char *disk_name; |
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+ long double read_time, write_time; |
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+ |
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+ for (retry = 0, dirty = 1; retry < 5 && dirty == 1; retry++) { |
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+ if (snap != NULL) |
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+ geom_stats_snapshot_free(snap); |
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+ |
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+ /* Get a fresh copy of stats snapshot */ |
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+ snap = geom_stats_snapshot_get(); |
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+ if (snap == NULL) { |
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+ ERROR("disk plugin: geom_stats_snapshot_get() failed."); |
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+ return (-1); |
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+ } |
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+ |
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+ /* Check if we have dirty read from this snapshot */ |
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+ dirty = 0; |
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+ geom_stats_snapshot_reset(snap); |
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+ while ((snap_iter = geom_stats_snapshot_next(snap)) != NULL) { |
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+ if (snap_iter->id == NULL) |
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+ continue; |
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+ geom_id = geom_lookupid(&geom_tree, snap_iter->id); |
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+ |
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+ /* New device? refresh GEOM tree */ |
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+ if (geom_id == NULL) { |
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+ geom_deletetree(&geom_tree); |
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+ if (geom_gettree(&geom_tree) != 0) { |
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+ ERROR("disk plugin: geom_gettree() failed"); |
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+ geom_stats_snapshot_free(snap); |
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+ return (-1); |
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+ } |
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+ geom_id = geom_lookupid(&geom_tree, snap_iter->id); |
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+ } |
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+ /* |
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+ * This should be rare: the device come right before we take the |
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+ * snapshot and went away right after it. We will handle this |
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+ * case later, so don't mark dirty but silently ignore it. |
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+ */ |
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+ if (geom_id == NULL) |
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+ continue; |
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+ |
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+ /* Only collect PROVIDER data */ |
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+ if (geom_id->lg_what != ISPROVIDER) |
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+ continue; |
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+ |
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+ /* Only collect data when rank is 1 (physical devices) */ |
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+ if (((struct gprovider *)(geom_id->lg_ptr))->lg_geom->lg_rank != 1) |
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+ continue; |
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+ |
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+ /* Check if this is a dirty read quit for another try */ |
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+ if (snap_iter->sequence0 != snap_iter->sequence1) { |
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+ dirty = 1; |
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+ break; |
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+ } |
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+ } |
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+ } |
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+ |
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+ /* Reset iterator */ |
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+ geom_stats_snapshot_reset(snap); |
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+ for (;;) { |
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+ snap_iter = geom_stats_snapshot_next(snap); |
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+ if (snap_iter == NULL) |
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+ break; |
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+ |
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+ if (snap_iter->id == NULL) |
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+ continue; |
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+ geom_id = geom_lookupid(&geom_tree, snap_iter->id); |
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+ if (geom_id == NULL) |
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+ continue; |
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+ if (geom_id->lg_what != ISPROVIDER) |
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+ continue; |
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+ if (((struct gprovider *)(geom_id->lg_ptr))->lg_geom->lg_rank != 1) |
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+ continue; |
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+ /* Skip dirty reads, if present */ |
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+ if (dirty && (snap_iter->sequence0 != snap_iter->sequence1)) |
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+ continue; |
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+ |
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+ disk_name = ((struct gprovider *)geom_id->lg_ptr)->lg_name; |
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+ |
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+ if ((snap_iter->bytes[1] != 0) || (snap_iter->bytes[2] != 0)) { |
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+ disk_submit(disk_name, "disk_octets", |
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+ (derive_t)snap_iter->bytes[1], |
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+ (derive_t)snap_iter->bytes[2]); |
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+ } |
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+ |
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+ if ((snap_iter->operations[1] != 0) || (snap_iter->operations[2] != 0)) { |
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+ disk_submit(disk_name, "disk_ops", |
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+ (derive_t)snap_iter->operations[1], |
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+ (derive_t)snap_iter->operations[2]); |
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+ } |
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+ |
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+ read_time = devstat_compute_etime(&snap_iter->duration[DEVSTAT_READ], NULL); |
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+ write_time = devstat_compute_etime(&snap_iter->duration[DEVSTAT_WRITE], NULL); |
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+ if ((read_time != 0) || (write_time != 0)) { |
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+ disk_submit (disk_name, "disk_time", |
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+ (derive_t)(read_time*1000), (derive_t)(write_time*1000)); |
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+ } |
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+ } |
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+ geom_stats_snapshot_free(snap); |
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+/* #endif KERNEL_FREEBSD */ |
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+ |
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#elif KERNEL_LINUX |
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FILE *fh; |
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char buffer[1024]; |