Add options to have fio latency profile a device
[fio.git] / server.c
index 8a6275deb6a817ed6519090089f47967f425cc19..6e96b77a46432cc3371d9cf1fb4f28e8555a39c9 100644 (file)
--- a/server.c
+++ b/server.c
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/un.h>
+#include <sys/uio.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <netdb.h>
 #include <syslog.h>
 #include <signal.h>
+#ifdef CONFIG_ZLIB
 #include <zlib.h>
+#endif
 
 #include "fio.h"
 #include "server.h"
@@ -33,6 +36,12 @@ static char *bind_sock;
 static struct sockaddr_in saddr_in;
 static struct sockaddr_in6 saddr_in6;
 static int use_ipv6;
+#ifdef CONFIG_ZLIB
+static unsigned int has_zlib = 1;
+#else
+static unsigned int has_zlib = 0;
+#endif
+static unsigned int use_zlib;
 
 struct fio_fork_item {
        struct flist_head list;
@@ -42,12 +51,6 @@ struct fio_fork_item {
        pid_t pid;
 };
 
-/* Created on fork on new connection */
-static FLIST_HEAD(conn_list);
-
-/* Created on job fork from connection */
-static FLIST_HEAD(job_list);
-
 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
        "",
        "QUIT",
@@ -462,16 +465,16 @@ static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
        flist_add_tail(&ffi->list, list);
 }
 
-static void fio_server_add_conn_pid(pid_t pid)
+static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
 {
-       dprint(FD_NET, "server: forked off connection job (pid=%u)\n", pid);
-       fio_server_add_fork_item(pid, &conn_list);
+       dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
+       fio_server_add_fork_item(pid, conn_list);
 }
 
-static void fio_server_add_job_pid(pid_t pid)
+static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
 {
-       dprint(FD_NET, "server: forked off job job (pid=%u)\n", pid);
-       fio_server_add_fork_item(pid, &job_list);
+       dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
+       fio_server_add_fork_item(pid, job_list);
 }
 
 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
@@ -481,7 +484,7 @@ static void fio_server_check_fork_item(struct fio_fork_item *ffi)
        ret = waitpid(ffi->pid, &status, WNOHANG);
        if (ret < 0) {
                if (errno == ECHILD) {
-                       log_err("fio: connection pid %u disappeared\n", ffi->pid);
+                       log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
                        ffi->exited = 1;
                } else
                        log_err("fio: waitpid: %s\n", strerror(errno));
@@ -500,7 +503,7 @@ static void fio_server_check_fork_item(struct fio_fork_item *ffi)
 
 static void fio_server_fork_item_done(struct fio_fork_item *ffi)
 {
-       dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", ffi->pid, ffi->signal, ffi->exitval);
+       dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
 
        /*
         * Fold STOP and QUIT...
@@ -526,17 +529,17 @@ static void fio_server_check_fork_items(struct flist_head *list)
        }
 }
 
-static void fio_server_check_jobs(void)
+static void fio_server_check_jobs(struct flist_head *job_list)
 {
-       fio_server_check_fork_items(&job_list);
+       fio_server_check_fork_items(job_list);
 }
 
-static void fio_server_check_conns(void)
+static void fio_server_check_conns(struct flist_head *conn_list)
 {
-       fio_server_check_fork_items(&conn_list);
+       fio_server_check_fork_items(conn_list);
 }
 
-static int handle_run_cmd(struct fio_net_cmd *cmd)
+static int handle_run_cmd(struct flist_head *job_list, struct fio_net_cmd *cmd)
 {
        pid_t pid;
        int ret;
@@ -545,7 +548,7 @@ static int handle_run_cmd(struct fio_net_cmd *cmd)
 
        pid = fork();
        if (pid) {
-               fio_server_add_job_pid(pid);
+               fio_server_add_job_pid(job_list, pid);
                return 0;
        }
 
@@ -616,7 +619,8 @@ static int handle_jobline_cmd(struct fio_net_cmd *cmd)
 
 static int handle_probe_cmd(struct fio_net_cmd *cmd)
 {
-       struct cmd_probe_pdu probe;
+       struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
+       struct cmd_probe_reply_pdu probe;
        uint64_t tag = cmd->tag;
 
        dprint(FD_NET, "server: sending probe reply\n");
@@ -632,7 +636,17 @@ static int handle_probe_cmd(struct fio_net_cmd *cmd)
        probe.arch      = FIO_ARCH;
        probe.bpp       = sizeof(void *);
        probe.cpus      = __cpu_to_le32(cpus_online());
-       probe.flags     = 0;
+
+       /*
+        * If the client supports compression and we do too, then enable it
+        */
+       if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
+               probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
+               use_zlib = 1;
+       } else {
+               probe.flags = 0;
+               use_zlib = 0;
+       }
 
        return fio_net_send_cmd(server_fd, FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, NULL);
 }
@@ -661,6 +675,7 @@ static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
        je->nr_running          = cpu_to_le32(je->nr_running);
        je->nr_ramp             = cpu_to_le32(je->nr_ramp);
        je->nr_pending          = cpu_to_le32(je->nr_pending);
+       je->nr_setting_up       = cpu_to_le32(je->nr_setting_up);
        je->files_open          = cpu_to_le32(je->files_open);
 
        for (i = 0; i < DDIR_RWDIR_CNT; i++) {
@@ -713,7 +728,7 @@ static int handle_update_job_cmd(struct fio_net_cmd *cmd)
        return 0;
 }
 
-static int handle_command(struct fio_net_cmd *cmd)
+static int handle_command(struct flist_head *job_list, struct fio_net_cmd *cmd)
 {
        int ret;
 
@@ -741,7 +756,7 @@ static int handle_command(struct fio_net_cmd *cmd)
                ret = handle_send_eta_cmd(cmd);
                break;
        case FIO_NET_CMD_RUN:
-               ret = handle_run_cmd(cmd);
+               ret = handle_run_cmd(job_list, cmd);
                break;
        case FIO_NET_CMD_UPDATE_JOB:
                ret = handle_update_job_cmd(cmd);
@@ -757,10 +772,10 @@ static int handle_command(struct fio_net_cmd *cmd)
 static int handle_connection(int sk)
 {
        struct fio_net_cmd *cmd = NULL;
+       FLIST_HEAD(job_list);
        int ret = 0;
 
        reset_fio_state();
-       INIT_FLIST_HEAD(&job_list);
        server_fd = sk;
 
        /* read forever */
@@ -784,7 +799,7 @@ static int handle_connection(int sk)
                                log_err("fio: poll: %s\n", strerror(errno));
                                break;
                        } else if (!ret) {
-                               fio_server_check_jobs();
+                               fio_server_check_jobs(&job_list);
                                continue;
                        }
 
@@ -796,7 +811,7 @@ static int handle_connection(int sk)
                        }
                } while (!exit_backend);
 
-               fio_server_check_jobs();
+               fio_server_check_jobs(&job_list);
 
                if (ret < 0)
                        break;
@@ -807,7 +822,7 @@ static int handle_connection(int sk)
                        break;
                }
 
-               ret = handle_command(cmd);
+               ret = handle_command(&job_list, cmd);
                if (ret)
                        break;
 
@@ -828,6 +843,7 @@ static int accept_loop(int listen_sk)
        socklen_t len = sizeof(addr);
        struct pollfd pfd;
        int ret = 0, sk, flags, exitval = 0;
+       FLIST_HEAD(conn_list);
 
        dprint(FD_NET, "server enter accept loop\n");
 
@@ -853,7 +869,7 @@ static int accept_loop(int listen_sk)
                                log_err("fio: poll: %s\n", strerror(errno));
                                break;
                        } else if (!ret) {
-                               fio_server_check_conns();
+                               fio_server_check_conns(&conn_list);
                                continue;
                        }
 
@@ -861,7 +877,7 @@ static int accept_loop(int listen_sk)
                                break;
                } while (!exit_backend);
 
-               fio_server_check_conns();
+               fio_server_check_conns(&conn_list);
 
                if (exit_backend || ret < 0)
                        break;
@@ -877,7 +893,7 @@ static int accept_loop(int listen_sk)
                pid = fork();
                if (pid) {
                        close(sk);
-                       fio_server_add_conn_pid(pid);
+                       fio_server_add_conn_pid(&conn_list, pid);
                        continue;
                }
 
@@ -1026,6 +1042,11 @@ void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
        p.ts.kb_base            = cpu_to_le32(ts->kb_base);
        p.ts.unit_base          = cpu_to_le32(ts->unit_base);
 
+       p.ts.latency_depth      = cpu_to_le32(ts->latency_depth);
+       p.ts.latency_target     = cpu_to_le64(ts->latency_target);
+       p.ts.latency_window     = cpu_to_le64(ts->latency_window);
+       p.ts.latency_percentile.u.i = __cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
+
        convert_gs(&p.rs, rs);
 
        fio_net_send_cmd(server_fd, FIO_NET_CMD_TS, &p, sizeof(p), NULL, NULL);
@@ -1117,26 +1138,12 @@ static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
        return fio_sendv_data(sk, iov, 2);
 }
 
-int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
+static int fio_send_iolog_gz(struct cmd_iolog_pdu *pdu, struct io_log *log)
 {
-       struct cmd_iolog_pdu pdu;
+       int ret = 0;
+#ifdef CONFIG_ZLIB
        z_stream stream;
        void *out_pdu;
-       int i, ret = 0;
-
-       pdu.thread_number = cpu_to_le32(td->thread_number);
-       pdu.nr_samples = __cpu_to_le32(log->nr_samples);
-       pdu.log_type = cpu_to_le32(log->log_type);
-       strcpy((char *) pdu.name, name);
-
-       for (i = 0; i < log->nr_samples; i++) {
-               struct io_sample *s = &log->log[i];
-
-               s->time = cpu_to_le64(s->time);
-               s->val  = cpu_to_le64(s->val);
-               s->ddir = cpu_to_le32(s->ddir);
-               s->bs   = cpu_to_le32(s->bs);
-       }
 
        /*
         * Dirty - since the log is potentially huge, compress it into
@@ -1154,14 +1161,6 @@ int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
                goto err;
        }
 
-       /*
-        * Send header first, it's not compressed.
-        */
-       ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
-                                       sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
-       if (ret)
-               goto err_zlib;
-
        stream.next_in = (void *) log->log;
        stream.avail_in = log->nr_samples * sizeof(struct io_sample);
 
@@ -1191,9 +1190,48 @@ err_zlib:
        deflateEnd(&stream);
 err:
        free(out_pdu);
+#endif
        return ret;
 }
 
+int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
+{
+       struct cmd_iolog_pdu pdu;
+       int i, ret = 0;
+
+       pdu.thread_number = cpu_to_le32(td->thread_number);
+       pdu.nr_samples = __cpu_to_le32(log->nr_samples);
+       pdu.log_type = cpu_to_le32(log->log_type);
+       pdu.compressed = cpu_to_le32(use_zlib);
+       strcpy((char *) pdu.name, name);
+
+       for (i = 0; i < log->nr_samples; i++) {
+               struct io_sample *s = &log->log[i];
+
+               s->time = cpu_to_le64(s->time);
+               s->val  = cpu_to_le64(s->val);
+               s->ddir = cpu_to_le32(s->ddir);
+               s->bs   = cpu_to_le32(s->bs);
+       }
+
+       /*
+        * Send header first, it's not compressed.
+        */
+       ret = fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, &pdu,
+                                       sizeof(pdu), 0, FIO_NET_CMD_F_MORE);
+       if (ret)
+               return ret;
+
+       /*
+        * Now send actual log, compress if we can, otherwise just plain
+        */
+       if (use_zlib)
+               return fio_send_iolog_gz(&pdu, log);
+
+       return fio_send_cmd_ext_pdu(server_fd, FIO_NET_CMD_IOLOG, log->log,
+                       log->nr_samples * sizeof(struct io_sample), 0, 0);
+}
+
 void fio_server_send_add_job(struct thread_data *td)
 {
        struct cmd_add_job_pdu pdu;
@@ -1429,7 +1467,7 @@ int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
                host++;
                lport = atoi(host);
                if (!lport || lport > 65535) {
-                       log_err("fio: bad server port %u\n", port);
+                       log_err("fio: bad server port %u\n", lport);
                        return 1;
                }
                /* no hostname given, we are done */
@@ -1447,7 +1485,7 @@ int fio_server_parse_string(const char *str, char **ptr, int *is_sock,
                        portp++;
                        lport = atoi(portp);
                        if (!lport || lport > 65535) {
-                               log_err("fio: bad server port %u\n", port);
+                               log_err("fio: bad server port %u\n", lport);
                                return 1;
                        }
                }