[CRIU] [PATCH] crit: RSS explorer

[Andrei Vagin]

Applied, thanks!

On Thu, Apr 13, 2017 at 06:26:36PM +0300, Pavel Emelyanov wrote:
> When running 'cirt x dir rss' one will see the way pagemap chunks
> are scatered across the VMs of processes. Sample output from the
> env00 zdtm test is
> 
> 22
> 	400000 / 1              00400000 / 5        /root/criu/test/zdtm/static/env00
> 
> 	604000 / 2              00604000 / 1        /root/criu/test/zdtm/static/env00
> 	                        00605000 / 1        /root/criu/test/zdtm/static/env00
> 
> 	853000 / 1              00853000 / 33
> 
> 	7faba2d4b000 / 6        7faba2d4b000 / 4        /usr/lib64/libc-2.22.so
> 	                        7faba2d4f000 / 2        /usr/lib64/libc-2.22.so
> 
> 	7faba2d51000 / 2        7faba2d51000 / 4
> 
> 	7faba2d54000 / 1        ~
> 
> 	7faba2f64000 / 3        7faba2f64000 / 3
> 
> 	7faba2f74000 / 1        7faba2f74000 / 1
> 
> 	7faba2f75000 / 2        7faba2f75000 / 1        /usr/lib64/ld-2.22.so
> 	                        7faba2f76000 / 1        /usr/lib64/ld-2.22.so
> 
> 	7faba2f77000 / 1        7faba2f77000 / 1
> 
> 	7fffb4de3000 / 3        7fffb4de2000 / 70
> 
> 	7fffb4e24000 / 2        ~
> 
> 	7fffb4e27000 / 1        ~
> 
> 	7fffb4f6a000 / 2        7fffb4f6a000 / 2
> 
> Signed-off-by: Pavel Emelyanov <xemul at virtuozzo.com>
> ---
>  crit/crit | 39 +++++++++++++++++++++++++++++++++++++--
>  1 file changed, 37 insertions(+), 2 deletions(-)
> 
> diff --git a/crit/crit b/crit/crit
> index 8b1e19b..a6a6832 100755
> --- a/crit/crit
> +++ b/crit/crit
> @@ -212,7 +212,42 @@ def explore_mems(opts):
>  			print "\t%-36s%s%s" % (astr, prot, fn)
>  
>  
> -explorers = { 'ps': explore_ps, 'fds': explore_fds, 'mems': explore_mems }
> +def explore_rss(opts):
> +	ps_img = pycriu.images.load(dinf(opts, 'pstree.img'))
> +	for p in ps_img['entries']:
> +		pid = p['pid']
> +		vmas = pycriu.images.load(dinf(opts, 'mm-%d.img' % pid))['entries'][0]['vmas']
> +		pms = pycriu.images.load(dinf(opts, 'pagemap-%d.img' % pid))['entries']
> +
> +		print "%d" % pid
> +		vmi = 0
> +		pvmi = -1
> +		for pm in pms[1:]:
> +			pstr = '\t%lx / %-8d' % (pm['vaddr'], pm['nr_pages'])
> +			while vmas[vmi]['end'] <= pm['vaddr']:
> +				vmi += 1
> +
> +			pme = pm['vaddr'] + (pm['nr_pages'] << 12)
> +			vstr = ''
> +			while vmas[vmi]['start'] < pme:
> +				vma = vmas[vmi]
> +				if vmi == pvmi:
> +					vstr += ' ~'
> +				else:
> +					vstr += ' %08lx / %-8d' % (vma['start'], (vma['end'] - vma['start'])>>12)
> +					if vma['status'] & ((1 << 6) | (1 << 7)):
> +						vstr += ' ' + get_file_str(opts, {'type': 'REG', 'id': vma['shmid']})
> +					pvmi = vmi
> +				vstr += '\n\t%23s' % ''
> +				vmi += 1
> +
> +			vmi -= 1
> +
> +			print '%-24s%s' % (pstr, vstr)
> +
> +
> +
> +explorers = { 'ps': explore_ps, 'fds': explore_fds, 'mems': explore_mems, 'rss': explore_rss }
>  
>  def explore(opts):
>  	explorers[opts['what']](opts)
> @@ -258,7 +293,7 @@ def main():
>  	# Explore
>  	x_parser = subparsers.add_parser('x', help = 'explore image dir')
>  	x_parser.add_argument('dir')
> -	x_parser.add_argument('what', choices = [ 'ps', 'fds', 'mems' ])
> +	x_parser.add_argument('what', choices = [ 'ps', 'fds', 'mems', 'rss'])
>  	x_parser.set_defaults(func=explore)
>  
>  	# Show
> -- 
> 2.5.5
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