* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
-#include <assert.h>
#include <stdio.h>
#include <string.h>
+#include <time.h>
#include "blktrace.h"
+#include "rbtree.h"
#include "list.h"
-#define pdu_start(t) (((void *) (t) + sizeof(struct blk_io_trace)))
+/*
+ * 0 == 1 blk
+ * 1 == 2 blks
+ * ...
+ * 1022 == 1023 blks
+ * 1023 == 1024 blks
+ * 1024 == > 1024 blks
+ */
+#define N_HIST_BKTS 1025
#define BIT_TIME(t) ((double)SECONDS(t) + ((double)NANO_SECONDS(t) / 1.0e9))
#define IOP_READ(iop) ((iop)->t.action & BLK_TC_ACT(BLK_TC_READ))
#define IOP_RW(iop) (IOP_READ(iop) ? 1 : 0)
-#if defined(DEBUG)
-#define ASSERT(truth) do { \
- if (!(truth)) { \
- DBG_PING(); \
- assert(truth); \
- } \
- } while (0)
-
-#define DBG_PING() dbg_ping()
-
-#define LIST_DEL(hp) list_del(hp)
-
-#else
-#define ASSERT(truth)
-#define DBG_PING()
-
-#define LIST_DEL(hp) do { \
- if (((hp)->next != NULL) && \
- ((hp)->next != LIST_POISON1)) \
- list_del(hp); \
- } while (0)
-#endif
-
-#define IO_ZALLOC() my_zmalloc(&free_ios, sizeof(struct io))
-#define IO_FREE(iop) my_free(&free_ios, iop)
+#define TO_SEC(nanosec) ((double)(nanosec) / 1.0e9)
+#define TO_MSEC(nanosec) (1000.0 * TO_SEC(nanosec))
enum iop_type {
IOP_Q = 0,
IOP_X = 1,
IOP_A = 2,
- IOP_M = 3,
- IOP_I = 4,
+ IOP_G = 3,
+ IOP_M = 4,
IOP_D = 5,
IOP_C = 6,
- IOP_Y = 7,
+ IOP_R = 7,
+ IOP_I = 8,
+ IOP_S = 9
};
-#define N_IOP_TYPES (IOP_Y + 1)
+#define N_IOP_TYPES (IOP_S + 1)
-struct my_mem {
- struct my_mem *next;
+struct mode {
+ int most_seeks, nmds;
+ long long *modes;
};
struct io;
};
struct avgs_info {
+ struct avg_info q2q_dm;
+ struct avg_info q2a_dm;
+ struct avg_info q2c_dm;
+
struct avg_info q2q;
- struct avg_info q2c;
- struct avg_info q2a; /* Q to (A or X) */
- struct avg_info q2i; /* Q to (I or M) */
- struct avg_info i2d; /* (I or M) to D */
+ struct avg_info q2a;
+ struct avg_info q2g;
+ struct avg_info s2g;
+ struct avg_info g2i;
+ struct avg_info q2m;
+ struct avg_info i2d;
+ struct avg_info m2d;
struct avg_info d2c;
+ struct avg_info q2c;
struct avg_info blks; /* Blocks transferred */
};
struct region_info {
struct list_head qranges;
struct list_head cranges;
- struct range_info *qr_cur, *cr_cur;
-};
-
-struct p_info;
-struct p_pid {
- struct list_head head;
- struct p_info *pip;
- __u32 pid;
};
struct p_info {
- struct list_head head;
struct region_info regions;
struct avgs_info avgs;
- char *name;
__u64 last_q;
-};
-
-struct devmap {
- struct devmap *next;
- char device[32];
- char model[64];
- unsigned int host, bus, target, lun;
- char node[32], pci[32];
- unsigned int irq, cpu;
- char devno[32];
+ __u32 pid;
+ char *name;
};
struct stats {
- __u64 rqm[2];
- __u64 ios[2];
- __u64 sec[2];
- __u64 wait;
- __u64 svctm;
-
- int cur_qusz, cur_dev;
+ __u64 rqm[2], ios[2], sec[2], wait, svctm;
double last_qu_change, last_dev_change, tot_qusz, idle_time;
+ int cur_qusz, cur_dev;
+};
+
+struct stats_t {
+ double n;
+ double rqm_s[2], ios_s[2], sec_s[2];
+ double avgrq_sz, avgqu_sz, await, svctm, p_util;
};
struct d_info {
- struct list_head head, hash_head;
- struct list_head iop_heads[N_IOP_TYPES];
+ struct list_head all_head, hash_head;
+ void *heads;
struct region_info regions;
+ char *devmap;
+ void *q2q_handle, *seek_handle, *bno_dump_handle, *up_hist_handle;
+ void *q2d_priv, *aqd_handle, *rstat_handle;
+ void *q2d_plat_handle, *q2c_plat_handle, *d2c_plat_handle;
+ FILE *q2d_ofp, *d2c_ofp, *q2c_ofp, *pit_fp;
struct avgs_info avgs;
- __u64 last_q;
- __u32 device;
- __u64 n_ds;
- struct devmap *map;
- void *seek_handle;
struct stats stats, all_stats;
+ __u64 last_q, n_qs, n_ds;
+ __u64 n_act_q, t_act_q; /* # currently active when Q comes in */
+ __u32 device;
+
+ int pre_culling;
+ int is_plugged, nplugs, nplugs_t;
+ __u64 nios_up, nios_upt;
+ double start_time, last_plug, plugged_time, end_time;
};
struct io {
- struct list_head all_head, dev_head;
+ struct rb_node rb_node;
+ struct list_head f_head, a_head;
struct d_info *dip;
struct p_info *pip;
void *pdu;
+ __u64 bytes_left, g_time, i_time, m_time, d_time, c_time, d_sec, c_sec;
+ __u64 s_time;
+ __u32 d_nsec, c_nsec;
struct blk_io_trace t;
- int users, traversed;
+ int linked;
enum iop_type type;
-
- union {
- struct {
- union {
- struct io *q_a;
- struct io *q_x;
- } qp;
- enum {
- Q_NONE = 10,
- Q_A = 20,
- Q_X = 30,
- } qp_type;
- } q;
- struct {
- union {
- struct io *a_q;
- struct io *a_a;
- } ap;
- enum {
- A_NONE = 10,
- A_A = 20,
- A_Q = 30,
- } ap_type;
- } a;
- struct { struct io *x_q; } x;
- struct { struct io *m_q; } m;
- struct { struct list_head i_qs_head; } i;
- struct { struct list_head d_im_head; } d;
- struct { struct io *c_d; } c;
- struct { struct io *y_c1, *y_c2; } y;
- } u;
};
+/* bt_timeline.c */
+
extern char bt_timeline_version[], *devices, *exes, *input_name, *output_name;
-extern char *seek_name, *iostat_name;
-extern double range_delta;
-extern FILE *ranges_ofp, *avgs_ofp, *iostat_ofp;
-extern int verbose, ifd;
+extern char *seek_name, *iostat_name, *d2c_name, *q2c_name, *per_io_name;
+extern char *bno_dump_name, *unplug_hist_name, *sps_name, *aqd_name, *q2d_name;
+extern char *per_io_trees;
+extern double range_delta, plat_freq, last_t_seen;
+extern FILE *rngs_ofp, *avgs_ofp, *xavgs_ofp, *iostat_ofp, *per_io_ofp;
+extern FILE *msgs_ofp;
+extern int verbose, done, time_bounded, output_all_data, seek_absolute;
+extern int easy_parse_avgs, ignore_remaps;
extern unsigned int n_devs;
-extern unsigned long n_traces, n_io_allocs, n_io_frees;
-extern struct list_head all_devs, all_ios, all_procs;
+extern unsigned long n_traces;
+extern struct list_head all_devs, all_procs;
extern struct avgs_info all_avgs;
extern __u64 last_q;
extern struct region_info all_regions;
-extern struct my_mem *free_ios, *free_bits;
-extern char iop_map[];
-extern unsigned int pending_xs;
+extern struct list_head all_ios, free_ios;
extern __u64 iostat_interval, iostat_last_stamp;
+extern time_t genesis, last_vtrace;
+extern double t_astart, t_aend;
+extern __u64 q_histo[N_HIST_BKTS], d_histo[N_HIST_BKTS];
-void add_trace(struct io *iop);
-int in_devices(struct blk_io_trace *t);
-char *make_dev_hdr(char *pad, size_t len, struct d_info *dip);
+/* args.c */
+void handle_args(int argc, char *argv[]);
+void clean_args();
+
+/* aqd.c */
+void *aqd_alloc(char *str);
+void aqd_free(void *info);
+void aqd_clean(void);
+void aqd_issue(void *info, double ts);
+void aqd_complete(void *info, double ts);
+
+/* devmap.c */
+int dev_map_read(char *fname);
+char *dev_map_find(__u32 device);
+void dev_map_exit(void);
+
+/* devs.c */
+void init_dev_heads(void);
+struct d_info *dip_alloc(__u32 device, struct io *iop);
+void iop_rem_dip(struct io *iop);
+struct d_info *__dip_find(__u32 device);
+void dip_foreach_list(struct io *iop, enum iop_type type, struct list_head *hd);
+void dip_foreach(struct io *iop, enum iop_type type,
+ void (*fnc)(struct io *iop, struct io *this), int rm_after);
+struct io *dip_find_sec(struct d_info *dip, enum iop_type type, __u64 sec);
+void dip_foreach_out(void (*func)(struct d_info *, void *), void *arg);
+void dip_plug(__u32 dev, double cur_time);
+void dip_unplug(__u32 dev, double cur_time, __u64 nio_ups);
+void dip_unplug_tm(__u32 dev, double cur_time, __u64 nio_ups);
+void dip_exit(void);
+void dip_cleanup(void);
+
+/* dip_rb.c */
+int rb_insert(struct rb_root *root, struct io *iop);
+struct io *rb_find_sec(struct rb_root *root, __u64 sec);
+void rb_foreach(struct rb_node *n, struct io *iop,
+ void (*fnc)(struct io *iop, struct io *this),
+ struct list_head *head);
+
+/* iostat.c */
+void iostat_init(void);
+void iostat_getrq(struct io *iop);
+void iostat_merge(struct io *iop);
+void iostat_issue(struct io *iop);
+void iostat_complete(struct io *d_iop, struct io *c_iop);
+void iostat_check_time(__u64 stamp);
+void iostat_dump_stats(__u64 stamp, int all);
+
+/* latency.c */
+void latency_alloc(struct d_info *dip);
+void latency_clean(void);
+void latency_q2d(struct d_info *dip, __u64 tstamp, __u64 latency);
+void latency_d2c(struct d_info *dip, __u64 tstamp, __u64 latency);
+void latency_q2c(struct d_info *dip, __u64 tstamp, __u64 latency);
+
+/* misc.c */
+void add_file(FILE *fp, char *oname);
+void add_buf(void *buf);
+char *make_dev_hdr(char *pad, size_t len, struct d_info *dip, int add_parens);
+FILE *my_fopen(const char *path, const char *mode);
+int my_open(const char *path, int flags);
+void dbg_ping(void);
+void clean_allocs(void);
+
+/* mmap.c */
+void setup_ifile(char *fname);
+void cleanup_ifile(void);
+int next_trace(struct blk_io_trace *t, void **pdu);
+double pct_done(void);
+
+/* output.c */
int output_avgs(FILE *ofp);
int output_ranges(FILE *ofp);
-unsigned int do_read(int ifd, void *buf, int len);
-void add_process(__u32 pid, char *name);
+
+/* proc.c */
+void process_alloc(__u32 pid, char *name);
struct p_info *find_process(__u32 pid, char *name);
void pip_update_q(struct io *iop);
-void handle_args(int argc, char *argv[]);
-struct devmap *dev_map_find(__u32 device);
-int dev_map_read(char *fname);
-void add_cy(struct io *iop);
-void rem_c(struct io *iop);
-void cy_init(void);
-void cy_shutdown(void);
-struct d_info *__dip_find(__u32 device);
-struct d_info *dip_add(__u32 device, struct io *iop);
-void traverse(struct io *iop);
-void io_free_resources(struct io *iop);
-void *seeki_init(__u32 device);
+void pip_foreach_out(void (*f)(struct p_info *, void *), void *arg);
+void pip_exit(void);
+
+/* bno_dump.c */
+void *bno_dump_alloc(__u32 device);
+void bno_dump_free(void *param);
+void bno_dump_add(void *handle, struct io *iop);
+void bno_dump_clean(void);
+
+/* plat.c */
+void *plat_alloc(char *str);
+void plat_free(void *info);
+void plat_clean(void);
+void plat_x2c(void *info, __u64 ts, __u64 latency);
+
+/* q2d.c */
+void q2d_histo_add(void *priv, __u64 q2d);
+void *q2d_alloc(void);
+void q2d_free(void *priv);
+void q2d_display_header(FILE *fp);
+void q2d_display_dashes(FILE *fp);
+void q2d_display(FILE *fp, void *priv);
+int q2d_ok(void *priv);
+void q2d_acc(void *a1, void *a2);
+
+/* rstats.c */
+void *rstat_alloc(char *bn);
+void rstat_free(void *ptr);
+void rstat_add(void *ptr, double cur, unsigned long long nblks);
+int rstat_init(void);
+void rstat_exit(void);
+
+/* seek.c */
+void *seeki_alloc(char *str);
+void seeki_free(void *param);
+void seek_clean(void);
void seeki_add(void *handle, struct io *iop);
double seeki_mean(void *handle);
long long seeki_nseeks(void *handle);
long long seeki_median(void *handle);
-int seeki_mode(void *handle, long long **modes_p, int *nseeks_p);
+int seeki_mode(void *handle, struct mode *mp);
-void iostat_init(void);
-void iostat_insert(struct io *iop);
-void iostat_merge(struct io *iop);
-void iostat_issue(struct io *iop);
-void iostat_complete(struct io *iop);
-void iostat_check_time(__u64 stamp);
-void iostat_dump_stats(__u64 stamp, int all);
+/* trace.c */
+void add_trace(struct io *iop);
+
+/* trace_complete.c */
+void trace_complete(struct io *c_iop);
+
+/* trace_im.c */
+void run_im(struct io *im_iop, struct io *d_iop, struct io *c_iop);
+void run_unim(struct io *im_iop, struct io *d_iop, struct io *c_iop);
+int ready_im(struct io *im_iop, struct io *c_iop);
+void trace_insert(struct io *i_iop);
+void trace_merge(struct io *m_iop);
+void trace_getrq(struct io *g_iop);
+void trace_sleeprq(struct io *s_iop);
+
+/* trace_issue.c */
+void run_issue(struct io *d_iop, struct io *u_iop, struct io *c_iop);
+void run_unissue(struct io *d_iop, struct io *u_iop, struct io *c_iop);
+int ready_issue(struct io *d_iop, struct io *c_iop);
+void trace_issue(struct io *d_iop);
+
+/* trace_plug.c */
+void trace_plug(struct io *p_iop);
+void trace_unplug_io(struct io *u_iop);
+void trace_unplug_timer(struct io *u_iop);
+
+/* trace_queue.c */
+void run_queue(struct io *q_iop, struct io *u_iop, struct io *c_iop);
+int ready_queue(struct io *q_iop, struct io *c_iop);
+void trace_queue(struct io *q_iop);
+
+/* trace_remap.c */
+void run_remap(struct io *a_iop, struct io *u_iop, struct io *c_iop);
+int ready_remap(struct io *a_iop, struct io *c_iop);
+void trace_remap(struct io *a_iop);
+
+/* trace_requeue.c */
+void trace_requeue(struct io *r_iop);
+
+/* unplug_hist.c */
+void *unplug_hist_alloc(__u32 device);
+void unplug_hist_free(void *arg);
+void unplug_hist_add(struct io *u_iop);
#include "inlines.h"
projects / blktrace.git / blobdiff