From: Stefano Stabellini Date: Fri, 6 Mar 2015 17:19:17 +0000 (+0000) Subject: libxl_wait_for_memory_target: wait for 2 sec at a time X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~3643 X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks://%22/%22http:/www.example.com/cgi/%22https:/%22bookmarks:/%22?a=commitdiff_plain;h=0c8d70336bbf3d83d6d927fecdd716010c4907dc;p=xen.git libxl_wait_for_memory_target: wait for 2 sec at a time 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 Reviewed-by: Mike Latimer Tested-by: Mike Latimer Acked-by: Ian Campbell --- diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c index 648a22785c..94b4d595ec 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 */