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| author | Ian Campbell <ian.campbell@citrix.com> | 2011-05-24 10:14:10 +0100 |
|---|---|---|
| committer | Ian Campbell <ian.campbell@citrix.com> | 2011-05-24 10:14:10 +0100 |
| commit | 84c8aada88692803cd3e48162c14d34d9b81cc0d (patch) | |
| tree | 540371ff3bca1471ff330b9b8ea64a9c867645e3 /tools/libxc/xc_domain_save.c | |
| parent | 3ab1cd75c8998755743eed0728ece17d87cafbb5 (diff) | |
| download | xen-84c8aada88692803cd3e48162c14d34d9b81cc0d.tar.gz xen-84c8aada88692803cd3e48162c14d34d9b81cc0d.tar.bz2 xen-84c8aada88692803cd3e48162c14d34d9b81cc0d.zip | |
libxc: save: don't bother calculating stat's deltas unless we are going to print them
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
Diffstat (limited to 'tools/libxc/xc_domain_save.c')
| -rw-r--r-- | tools/libxc/xc_domain_save.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/tools/libxc/xc_domain_save.c b/tools/libxc/xc_domain_save.c index 08615979e1..271ce7f809 100644 --- a/tools/libxc/xc_domain_save.c +++ b/tools/libxc/xc_domain_save.c @@ -275,10 +275,6 @@ static int print_stats(xc_interface *xch, uint32_t domid, int pages_sent, static struct time_stats last; struct time_stats now; - long long wall_delta; - long long d0_cpu_delta; - long long d1_cpu_delta; - gettimeofday(&now.wall, NULL); now.d0_cpu = xc_domain_get_cpu_usage(xch, 0, /* FIXME */ 0)/1000; @@ -287,14 +283,19 @@ static int print_stats(xc_interface *xch, uint32_t domid, int pages_sent, if ( (now.d0_cpu == -1) || (now.d1_cpu == -1) ) DPRINTF("ARRHHH!!\n"); - wall_delta = tv_delta(&now.wall,&last.wall)/1000; - if ( wall_delta == 0 ) - wall_delta = 1; + if ( print ) + { + long long wall_delta; + long long d0_cpu_delta; + long long d1_cpu_delta; + + wall_delta = tv_delta(&now.wall,&last.wall)/1000; + if ( wall_delta == 0 ) + wall_delta = 1; - d0_cpu_delta = (now.d0_cpu - last.d0_cpu)/1000; - d1_cpu_delta = (now.d1_cpu - last.d1_cpu)/1000; + d0_cpu_delta = (now.d0_cpu - last.d0_cpu)/1000; + d1_cpu_delta = (now.d1_cpu - last.d1_cpu)/1000; - if ( print ) DPRINTF("delta %lldms, dom0 %d%%, target %d%%, sent %dMb/s, " "dirtied %dMb/s %" PRId32 " pages\n", wall_delta, @@ -303,6 +304,7 @@ static int print_stats(xc_interface *xch, uint32_t domid, int pages_sent, (int)((pages_sent*PAGE_SIZE)/(wall_delta*(1000/8))), (int)((stats->dirty_count*PAGE_SIZE)/(wall_delta*(1000/8))), stats->dirty_count); + } last = now; |