In addition to VBD read/write request#, add VBD read/write sector# also. It
makes VBD throughput observation easier. As the method to get such info is OS
dependent, just Linux version code is added.
Signed-off-by: Yang Xiaowei <xiaowei.yang@xxxxxxxxx>
Thanks,
xiaowei
diff -r 059c01d69a08 tools/xenstat/libxenstat/src/xenstat.c
--- a/tools/xenstat/libxenstat/src/xenstat.c Thu Oct 29 14:48:28 2009 +0000
+++ b/tools/xenstat/libxenstat/src/xenstat.c Thu Nov 05 09:28:00 2009 +0800
@@ -653,6 +653,18 @@
return vbd->wr_reqs;
}
+/* Get the number of READ sectors */
+unsigned long long xenstat_vbd_rd_sects(xenstat_vbd * vbd)
+{
+ return vbd->rd_sects;
+}
+
+/* Get the number of WRITE sectors */
+unsigned long long xenstat_vbd_wr_sects(xenstat_vbd * vbd)
+{
+ return vbd->wr_sects;
+}
+
static char *xenstat_get_domain_name(xenstat_handle *handle, unsigned int
domain_id)
{
char path[80], *vmpath;
diff -r 059c01d69a08 tools/xenstat/libxenstat/src/xenstat.h
--- a/tools/xenstat/libxenstat/src/xenstat.h Thu Oct 29 14:48:28 2009 +0000
+++ b/tools/xenstat/libxenstat/src/xenstat.h Thu Nov 05 09:28:00 2009 +0800
@@ -183,5 +183,7 @@
unsigned long long xenstat_vbd_oo_reqs(xenstat_vbd * vbd);
unsigned long long xenstat_vbd_rd_reqs(xenstat_vbd * vbd);
unsigned long long xenstat_vbd_wr_reqs(xenstat_vbd * vbd);
+unsigned long long xenstat_vbd_rd_sects(xenstat_vbd * vbd);
+unsigned long long xenstat_vbd_wr_sects(xenstat_vbd * vbd);
#endif /* XENSTAT_H */
diff -r 059c01d69a08 tools/xenstat/libxenstat/src/xenstat_linux.c
--- a/tools/xenstat/libxenstat/src/xenstat_linux.c Thu Oct 29 14:48:28
2009 +0000
+++ b/tools/xenstat/libxenstat/src/xenstat_linux.c Thu Nov 05 09:28:00
2009 +0800
@@ -243,6 +243,18 @@
continue;
}
+ if((read_attributes_vbd(dp->d_name, "statistics/rd_sect", buf,
256)<=0)
+ || ((ret = sscanf(buf, "%llu", &vbd.rd_sects)) != 1))
+ {
+ continue;
+ }
+
+ if((read_attributes_vbd(dp->d_name, "statistics/wr_sect", buf,
256)<=0)
+ || ((ret = sscanf(buf, "%llu", &vbd.wr_sects)) != 1))
+ {
+ continue;
+ }
+
if (domain->vbds == NULL) {
domain->num_vbds = 1;
domain->vbds = malloc(sizeof(xenstat_vbd));
diff -r 059c01d69a08 tools/xenstat/libxenstat/src/xenstat_priv.h
--- a/tools/xenstat/libxenstat/src/xenstat_priv.h Thu Oct 29 14:48:28
2009 +0000
+++ b/tools/xenstat/libxenstat/src/xenstat_priv.h Thu Nov 05 09:28:00
2009 +0800
@@ -92,6 +92,8 @@
unsigned long long oo_reqs;
unsigned long long rd_reqs;
unsigned long long wr_reqs;
+ unsigned long long rd_sects;
+ unsigned long long wr_sects;
};
extern int xenstat_collect_networks(xenstat_node * node);
diff -r 059c01d69a08 tools/xenstat/xentop/xentop.c
--- a/tools/xenstat/xentop/xentop.c Thu Oct 29 14:48:28 2009 +0000
+++ b/tools/xenstat/xentop/xentop.c Thu Nov 05 09:28:00 2009 +0800
@@ -116,6 +116,10 @@
static void print_vbd_rd(xenstat_domain *domain);
static int compare_vbd_wr(xenstat_domain *domain1, xenstat_domain *domain2);
static void print_vbd_wr(xenstat_domain *domain);
+static int compare_vbd_rsect(xenstat_domain *domain1, xenstat_domain *domain2);
+static void print_vbd_rsect(xenstat_domain *domain);
+static int compare_vbd_wsect(xenstat_domain *domain1, xenstat_domain *domain2);
+static void print_vbd_wsect(xenstat_domain *domain);
/* Section printing functions */
@@ -147,6 +151,8 @@
FIELD_VBD_OO,
FIELD_VBD_RD,
FIELD_VBD_WR,
+ FIELD_VBD_RSECT,
+ FIELD_VBD_WSECT,
FIELD_SSID
} field_id;
@@ -159,23 +165,25 @@
} field;
field fields[] = {
- { FIELD_NAME, "NAME", 10, compare_name, print_name },
- { FIELD_STATE, "STATE", 6, compare_state, print_state },
- { FIELD_CPU, "CPU(sec)", 10, compare_cpu, print_cpu },
- { FIELD_CPU_PCT, "CPU(%)", 6, compare_cpu_pct, print_cpu_pct },
- { FIELD_MEM, "MEM(k)", 10, compare_mem, print_mem },
- { FIELD_MEM_PCT, "MEM(%)", 6, compare_mem, print_mem_pct },
- { FIELD_MAXMEM, "MAXMEM(k)", 10, compare_maxmem, print_maxmem },
- { FIELD_MAX_PCT, "MAXMEM(%)", 9, compare_maxmem, print_max_pct },
- { FIELD_VCPUS, "VCPUS", 5, compare_vcpus, print_vcpus },
- { FIELD_NETS, "NETS", 4, compare_nets, print_nets },
- { FIELD_NET_TX, "NETTX(k)", 8, compare_net_tx, print_net_tx },
- { FIELD_NET_RX, "NETRX(k)", 8, compare_net_rx, print_net_rx },
- { FIELD_VBDS, "VBDS", 4, compare_vbds, print_vbds },
- { FIELD_VBD_OO, "VBD_OO", 8, compare_vbd_oo, print_vbd_oo },
- { FIELD_VBD_RD, "VBD_RD", 8, compare_vbd_rd, print_vbd_rd },
- { FIELD_VBD_WR, "VBD_WR", 8, compare_vbd_wr, print_vbd_wr },
- { FIELD_SSID, "SSID", 4, compare_ssid, print_ssid }
+ { FIELD_NAME, "NAME", 10, compare_name, print_name },
+ { FIELD_STATE, "STATE", 6, compare_state, print_state },
+ { FIELD_CPU, "CPU(sec)", 10, compare_cpu, print_cpu },
+ { FIELD_CPU_PCT, "CPU(%)", 6, compare_cpu_pct, print_cpu_pct },
+ { FIELD_MEM, "MEM(k)", 10, compare_mem, print_mem },
+ { FIELD_MEM_PCT, "MEM(%)", 6, compare_mem, print_mem_pct },
+ { FIELD_MAXMEM, "MAXMEM(k)", 10, compare_maxmem, print_maxmem },
+ { FIELD_MAX_PCT, "MAXMEM(%)", 9, compare_maxmem, print_max_pct },
+ { FIELD_VCPUS, "VCPUS", 5, compare_vcpus, print_vcpus },
+ { FIELD_NETS, "NETS", 4, compare_nets, print_nets },
+ { FIELD_NET_TX, "NETTX(k)", 8, compare_net_tx, print_net_tx },
+ { FIELD_NET_RX, "NETRX(k)", 8, compare_net_rx, print_net_rx },
+ { FIELD_VBDS, "VBDS", 4, compare_vbds, print_vbds },
+ { FIELD_VBD_OO, "VBD_OO", 8, compare_vbd_oo, print_vbd_oo },
+ { FIELD_VBD_RD, "VBD_RD", 8, compare_vbd_rd, print_vbd_rd },
+ { FIELD_VBD_WR, "VBD_WR", 8, compare_vbd_wr, print_vbd_wr },
+ { FIELD_VBD_RSECT, "VBD_RSECT", 10, compare_vbd_rsect, print_vbd_rsect
},
+ { FIELD_VBD_WSECT, "VBD_WSECT", 10, compare_vbd_wsect, print_vbd_wsect
},
+ { FIELD_SSID, "SSID", 4, compare_ssid, print_ssid }
};
const unsigned int NUM_FIELDS = sizeof(fields)/sizeof(field);
@@ -685,20 +693,51 @@
returning -1,0,1 * for <,=,> */
static int compare_vbd_wr(xenstat_domain *domain1, xenstat_domain *domain2)
{
- return -compare(tot_vbd_reqs(domain1,FIELD_VBD_WR),
- tot_vbd_reqs(domain2,FIELD_VBD_WR));
+ return -compare(tot_vbd_reqs(domain1, FIELD_VBD_WR),
+ tot_vbd_reqs(domain2, FIELD_VBD_WR));
}
/* Prints number of total VBD WRITE requests statistic */
static void print_vbd_wr(xenstat_domain *domain)
{
- print("%8llu", tot_vbd_reqs(domain,FIELD_VBD_WR));
+ print("%8llu", tot_vbd_reqs(domain, FIELD_VBD_WR));
}
+
+/* Compares number of total VBD READ sectors of two domains,
+ returning -1,0,1 * for <,=,> */
+static int compare_vbd_rsect(xenstat_domain *domain1, xenstat_domain *domain2)
+{
+ return -compare(tot_vbd_reqs(domain1, FIELD_VBD_RSECT),
+ tot_vbd_reqs(domain2, FIELD_VBD_RSECT));
+}
+
+/* Prints number of total VBD READ sectors statistic */
+static void print_vbd_rsect(xenstat_domain *domain)
+{
+ print("%10llu", tot_vbd_reqs(domain, FIELD_VBD_RSECT));
+}
+
+/* Compares number of total VBD WRITE sectors of two domains,
+ returning -1,0,1 * for <,=,> */
+static int compare_vbd_wsect(xenstat_domain *domain1, xenstat_domain *domain2)
+{
+ return -compare(tot_vbd_reqs(domain1, FIELD_VBD_WSECT),
+ tot_vbd_reqs(domain2, FIELD_VBD_WSECT));
+}
+
+/* Prints number of total VBD WRITE sectors statistic */
+static void print_vbd_wsect(xenstat_domain *domain)
+{
+ print("%10llu", tot_vbd_reqs(domain, FIELD_VBD_WSECT));
+}
+
/* Gets number of total VBD requests statistic,
* if flag is FIELD_VBD_OO, then OO requests,
- * if flag is FIELD_VBD_RD, then READ requests and
- * if flag is FIELD_VBD_WR, then WRITE requests.
+ * if flag is FIELD_VBD_RD, then READ requests,
+ * if flag is FIELD_VBD_WR, then WRITE requests,
+ * if flag is FIELD_VBD_RSECT, then READ sectors,
+ * if flag is FIELD_VBD_WSECT, then WRITE sectors.
*/
static unsigned long long tot_vbd_reqs(xenstat_domain *domain, int flag)
{
@@ -720,6 +759,12 @@
break;
case FIELD_VBD_WR:
total += xenstat_vbd_wr_reqs(vbd);
+ break;
+ case FIELD_VBD_RSECT:
+ total += xenstat_vbd_rd_sects(vbd);
+ break;
+ case FIELD_VBD_WSECT:
+ total += xenstat_vbd_wr_sects(vbd);
break;
default:
break;
@@ -950,12 +995,14 @@
MINOR(xenstat_vbd_dev(vbd)));
#endif
- print("VBD %s %4d %s OO: %8llu RD: %8llu WR: %8llu\n",
+ print("VBD %s %4d %s OO: %8llu RD: %8llu WR: %8llu RSECT:
%10llu WSECT: %10llu\n",
vbd_type[xenstat_vbd_type(vbd)],
xenstat_vbd_dev(vbd), details,
xenstat_vbd_oo_reqs(vbd),
xenstat_vbd_rd_reqs(vbd),
- xenstat_vbd_wr_reqs(vbd));
+ xenstat_vbd_wr_reqs(vbd),
+ xenstat_vbd_rd_sects(vbd),
+ xenstat_vbd_wr_sects(vbd));
}
}
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