[Xen-devel] [PATCH v2 4/4] libxl_wait_for_memory_target: wait for 2 sec at a time

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

Use a 2 sec sleep time in the loop to allow the guest to release a
decent amount of memory in an iteration (empirical tests show ballooning
speed to be 512MB/sec or recent boxes).

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Reviewed-by: Mike Latimer <mlatimer@xxxxxxxx>
Tested-by: Mike Latimer <mlatimer@xxxxxxxx>
---
 tools/libxl/libxl.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 648a227..94b4d59 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -4970,7 +4970,7 @@ int libxl_wait_for_memory_target(libxl_ctx *ctx, uint32_t 
domid, int wait_secs)
     prev_memkb = UINT64_MAX;
 
     do {
-        sleep(1);
+        sleep(2);
 
         libxl_dominfo_dispose(&info);
         libxl_dominfo_init(&info);
@@ -4986,7 +4986,7 @@ int libxl_wait_for_memory_target(libxl_ctx *ctx, uint32_t 
domid, int wait_secs)
             goto out;
         }
         else if (current_memkb == prev_memkb)
-            wait_secs--;
+            wait_secs -= 2;
         /* if current_memkb < prev_memkb loop for free as progress has
          * been made */
 
-- 
1.7.10.4


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