diff --git a/wally/suits/io/agent.py b/wally/suits/io/agent.py
index d15d18e..1982e35 100644
--- a/wally/suits/io/agent.py
+++ b/wally/suits/io/agent.py
@@ -1,7 +1,7 @@
 import sys
 import time
 import json
-import random
+import copy
 import select
 import pprint
 import argparse
@@ -15,6 +15,234 @@
 SETTING = 1
 
 
+class FioJobSection(object):
+    def __init__(self, name):
+        self.name = name
+        self.vals = OrderedDict()
+        self.format_params = {}
+
+    def copy(self):
+        return copy.deepcopy(self)
+
+
+def to_bytes(sz):
+    sz = sz.lower()
+    try:
+        return int(sz)
+    except ValueError:
+        if sz[-1] == 'm':
+            return (1024 ** 2) * int(sz[:-1])
+        if sz[-1] == 'k':
+            return 1024 * int(sz[:-1])
+        if sz[-1] == 'g':
+            return (1024 ** 3) * int(sz[:-1])
+        raise
+
+
+def fio_config_lexer(fio_cfg):
+    for lineno, line in enumerate(fio_cfg.split("\n")):
+        try:
+            line = line.strip()
+
+            if line.startswith("#") or line.startswith(";"):
+                continue
+
+            if line == "":
+                continue
+
+            if line.startswith('['):
+                assert line.endswith(']'), "name should ends with ]"
+                yield lineno, SECTION, line[1:-1], None
+            elif '=' in line:
+                opt_name, opt_val = line.split('=', 1)
+                yield lineno, SETTING, opt_name.strip(), opt_val.strip()
+            else:
+                yield lineno, SETTING, line, None
+        except Exception as exc:
+            pref = "During parsing line number {0}\n".format(lineno)
+            raise ValueError(pref + exc.message)
+
+
+def fio_config_parse(lexer_iter, format_params):
+    orig_format_params_keys = set(format_params)
+    format_params = format_params.copy()
+    in_defaults = False
+    curr_section = None
+    defaults = OrderedDict()
+
+    for lineno, tp, name, val in lexer_iter:
+        if tp == SECTION:
+            if curr_section is not None:
+                yield curr_section
+
+            if name == 'defaults':
+                in_defaults = True
+                curr_section = None
+            else:
+                in_defaults = False
+                curr_section = FioJobSection(name)
+                curr_section.format_params = format_params.copy()
+                curr_section.vals = defaults.copy()
+        else:
+            assert tp == SETTING
+            if name == name.upper():
+                msg = "Param not in default section in line " + str(lineno)
+                assert in_defaults, msg
+                if name not in orig_format_params_keys:
+                    # don't make parse_value for PARAMS
+                    # they would be parsed later
+                    # or this would breakes arrays
+                    format_params[name] = val
+            elif in_defaults:
+                defaults[name] = parse_value(val)
+            else:
+                msg = "data outside section, line " + str(lineno)
+                assert curr_section is not None, msg
+                curr_section.vals[name] = parse_value(val)
+
+    if curr_section is not None:
+        yield curr_section
+
+
+def parse_value(val):
+    if val is None:
+        return None
+
+    try:
+        return int(val)
+    except ValueError:
+        pass
+
+    try:
+        return float(val)
+    except ValueError:
+        pass
+
+    if val.startswith('{%'):
+        assert val.endswith("%}")
+        content = val[2:-2]
+        vals = list(i.strip() for i in content.split(','))
+        return map(parse_value, vals)
+    return val
+
+
+def process_repeats(sec_iter):
+
+    for sec in sec_iter:
+        if '*' in sec.name:
+            msg = "Only one '*' allowed in section name"
+            assert sec.name.count('*') == 1, msg
+
+            name, count = sec.name.split("*")
+            sec.name = name.strip()
+            count = count.strip()
+
+            try:
+                count = int(count.strip().format(**sec.format_params))
+            except KeyError:
+                raise ValueError("No parameter {0} given".format(count[1:-1]))
+            except ValueError:
+                msg = "Parameter {0} nas non-int value {1!r}"
+                raise ValueError(msg.format(count[1:-1],
+                                 count.format(**sec.format_params)))
+
+            yield sec
+
+            if 'ramp_time' in sec.vals:
+                sec = sec.copy()
+                sec.vals['_ramp_time'] = sec.vals.pop('ramp_time')
+
+            for _ in range(count - 1):
+                yield sec.copy()
+        else:
+            yield sec
+
+
+def process_cycles(sec_iter):
+    # insert parametrized cycles
+    sec_iter = try_format_params_into_section(sec_iter)
+
+    for sec in sec_iter:
+
+        cycles_var_names = []
+        cycles_var_values = []
+
+        for name, val in sec.vals.items():
+            if isinstance(val, list):
+                cycles_var_names.append(name)
+                cycles_var_values.append(val)
+
+        if len(cycles_var_names) == 0:
+            yield sec
+        else:
+            for combination in itertools.product(*cycles_var_values):
+                new_sec = sec.copy()
+                new_sec.vals.update(zip(cycles_var_names, combination))
+                yield new_sec
+
+
+def try_format_params_into_section(sec_iter):
+    for sec in sec_iter:
+        params = sec.format_params
+        for name, val in sec.vals.items():
+            if isinstance(val, basestring):
+                try:
+                    sec.vals[name] = parse_value(val.format(**params))
+                except:
+                    pass
+
+        yield sec
+
+
+def format_params_into_section_finall(sec_iter, counter=[0]):
+    group_report_err_msg = "Group reporting should be set if numjobs != 1"
+
+    for sec in sec_iter:
+
+        num_jobs = int(sec.vals.get('numjobs', '1'))
+        if num_jobs != 1:
+            assert 'group_reporting' in sec.vals, group_report_err_msg
+
+        params = sec.format_params
+
+        fsize = to_bytes(sec.vals['size'])
+        params['PER_TH_OFFSET'] = fsize // num_jobs
+
+        for name, val in sec.vals.items():
+            if isinstance(val, basestring):
+                sec.vals[name] = parse_value(val.format(**params))
+            else:
+                assert isinstance(val, (int, float)) or val is None
+
+        params['UNIQ'] = 'UN{0}'.format(counter[0])
+        counter[0] += 1
+        params['TEST_SUMM'] = get_test_summary(sec.vals)
+        sec.name = sec.name.format(**params)
+
+        yield sec
+
+
+def fio_config_to_str(sec_iter):
+    res = ""
+
+    for pos, sec in enumerate(sec_iter):
+        if pos != 0:
+            res += "\n"
+
+        res += "[{0}]\n".format(sec.name)
+
+        for name, val in sec.vals.items():
+            if name.startswith('_'):
+                continue
+
+            if val is None:
+                res += name + "\n"
+            else:
+                res += "{0}={1}\n".format(name, val)
+
+    return res
+
+
 def get_test_sync_mode(config):
     try:
         return config['sync_mode']
@@ -52,343 +280,78 @@
                                    th_count)
 
 
-counter = [0]
-
-
-def extract_iterables(vals):
-    iterable_names = []
-    iterable_values = []
-    rest = {}
-
-    for val_name, val in vals.items():
-        if val is None or not val.startswith('{%'):
-            rest[val_name] = val
-        else:
-            assert val.endswith("%}")
-            content = val[2:-2]
-            iterable_names.append(val_name)
-            iterable_values.append(list(i.strip() for i in content.split(',')))
-
-    return iterable_names, iterable_values, rest
-
-
-def format_params_into_section(sec, params, final=True):
-    processed_vals = {}
-
-    for val_name, val in sec.items():
-        if val is None:
-            processed_vals[val_name] = val
-        else:
-            try:
-                processed_vals[val_name] = val.format(**params)
-            except KeyError:
-                if final:
-                    raise
-                processed_vals[val_name] = val
-
-    return processed_vals
-
-
-def process_section(name, vals, defaults, format_params):
-    vals = vals.copy()
-    params = format_params.copy()
-
-    if '*' in name:
-        name, repeat = name.split('*')
-        name = name.strip()
-        repeat = int(repeat.format(**params))
-    else:
-        repeat = 1
-
-    # this code can be optimized
-    iterable_names, iterable_values, processed_vals = extract_iterables(vals)
-
-    group_report_err_msg = "Group reporting should be set if numjobs != 1"
-
-    if iterable_values == []:
-        processed_vals = format_params_into_section(processed_vals, params,
-                                                    final=False)
-        params['UNIQ'] = 'UN{0}'.format(counter[0])
-        counter[0] += 1
-        params['TEST_SUMM'] = get_test_summary(processed_vals)
-
-        num_jobs = int(processed_vals.get('numjobs', '1'))
-        fsize = to_bytes(processed_vals['size'])
-        params['PER_TH_OFFSET'] = fsize // num_jobs
-
-        processed_vals = format_params_into_section(processed_vals, params,
-                                                    final=True)
-
-        if num_jobs != 1:
-            assert 'group_reporting' in processed_vals, group_report_err_msg
-
-        ramp_time = processed_vals.get('ramp_time')
-        for i in range(repeat):
-            yield name.format(**params), processed_vals.copy()
-
-            if 'ramp_time' in processed_vals:
-                del processed_vals['ramp_time']
-
-        if ramp_time is not None:
-            processed_vals['ramp_time'] = ramp_time
-    else:
-        for it_vals in itertools.product(*iterable_values):
-            processed_vals = format_params_into_section(processed_vals, params,
-                                                        final=False)
-
-            processed_vals.update(dict(zip(iterable_names, it_vals)))
-            params['UNIQ'] = 'UN{0}'.format(counter[0])
-            counter[0] += 1
-            params['TEST_SUMM'] = get_test_summary(processed_vals)
-
-            num_jobs = int(processed_vals.get('numjobs', '1'))
-            fsize = to_bytes(processed_vals['size'])
-            params['PER_TH_OFFSET'] = fsize // num_jobs
-
-            processed_vals = format_params_into_section(processed_vals, params,
-                                                        final=True)
-
-            if processed_vals.get('numjobs', '1') != '1':
-                assert 'group_reporting' in processed_vals,\
-                    group_report_err_msg
-
-            ramp_time = processed_vals.get('ramp_time')
-
-            for i in range(repeat):
-                yield name.format(**params), processed_vals.copy()
-                if 'ramp_time' in processed_vals:
-                    processed_vals['_ramp_time'] = ramp_time
-                    processed_vals.pop('ramp_time')
-
-            if ramp_time is not None:
-                processed_vals['ramp_time'] = ramp_time
-                processed_vals.pop('_ramp_time')
-
-
-def calculate_execution_time(combinations):
+def calculate_execution_time(sec_iter):
     time = 0
-    for _, params in combinations:
-        time += int(params.get('ramp_time', 0))
-        time += int(params.get('_ramp_time', 0))
-        time += int(params.get('runtime', 0))
+    for sec in sec_iter:
+        time += sec.vals.get('ramp_time', 0)
+        time += sec.vals.get('runtime', 0)
     return time
 
 
-def parse_fio_config_full(fio_cfg, params=None):
-    defaults = {}
-    format_params = {}
+def slice_config(sec_iter, runcycle=None, max_jobs=1000):
+    jcount = 0
+    runtime = 0
+    curr_slice = []
 
-    if params is None:
-        ext_params = {}
-    else:
-        ext_params = params.copy()
+    for pos, sec in enumerate(sec_iter):
 
-    curr_section = None
-    curr_section_name = None
+        jc = sec.vals.get('numjobs', 1)
+        msg = "numjobs should be integer, not {0!r}".format(jc)
+        assert isinstance(jc, int), msg
 
-    for tp, name, val in parse_fio_config_iter(fio_cfg):
-        if tp == SECTION:
-            non_def = curr_section_name != 'defaults'
-            if curr_section_name is not None and non_def:
-                format_params.update(ext_params)
-                for sec in process_section(curr_section_name,
-                                           curr_section,
-                                           defaults,
-                                           format_params):
-                    yield sec
+        curr_task_time = calculate_execution_time([sec])
 
-            if name == 'defaults':
-                curr_section = defaults
-            else:
-                curr_section = OrderedDict()
-                curr_section.update(defaults)
-            curr_section_name = name
+        if jc > max_jobs:
+            err_templ = "Can't process job {0!r} - too large numjobs"
+            raise ValueError(err_templ.format(sec.name))
 
+        if runcycle is not None and len(curr_slice) != 0:
+            rc_ok = curr_task_time + runtime <= runcycle
         else:
-            assert tp == SETTING
-            assert curr_section_name is not None, "no section name"
-            if name == name.upper():
-                assert curr_section_name == 'defaults'
-                format_params[name] = val
-            else:
-                curr_section[name] = val
+            rc_ok = True
 
-    if curr_section_name is not None and curr_section_name != 'defaults':
-        format_params.update(ext_params)
-        for sec in process_section(curr_section_name,
-                                   curr_section,
-                                   defaults,
-                                   format_params):
-            yield sec
-
-
-def parse_fio_config_iter(fio_cfg):
-    for lineno, line in enumerate(fio_cfg.split("\n")):
-        try:
-            line = line.strip()
-
-            if line.startswith("#") or line.startswith(";"):
-                continue
-
-            if line == "":
-                continue
-
-            if line.startswith('['):
-                assert line.endswith(']'), "name should ends with ]"
-                yield SECTION, line[1:-1], None
-            elif '=' in line:
-                opt_name, opt_val = line.split('=', 1)
-                yield SETTING, opt_name.strip(), opt_val.strip()
-            else:
-                yield SETTING, line, None
-        except Exception as exc:
-            pref = "During parsing line number {0}\n".format(lineno)
-            raise ValueError(pref + exc.message)
-
-
-def format_fio_config(fio_cfg):
-    res = ""
-    for pos, (name, section) in enumerate(fio_cfg):
-        if name.startswith('_'):
+        if jc + jcount <= max_jobs and rc_ok:
+            runtime += curr_task_time
+            jcount += jc
+            curr_slice.append(sec)
             continue
 
-        if pos != 0:
-            res += "\n"
+        assert len(curr_slice) != 0
+        yield curr_slice
 
-        res += "[{0}]\n".format(name)
-        for opt_name, opt_val in section.items():
-            if opt_val is None:
-                res += opt_name + "\n"
-            else:
-                res += "{0}={1}\n".format(opt_name, opt_val)
-    return res
+        if '_ramp_time' in sec.vals:
+            sec.vals['ramp_time'] = sec.vals.pop('_ramp_time')
+            curr_task_time = calculate_execution_time([sec])
+
+        runtime = curr_task_time
+        jcount = jc
+        curr_slice = [sec]
+
+    if curr_slice != []:
+        yield curr_slice
 
 
-count = 0
+def parse_all_in_1(source, test_params):
+    lexer_it = fio_config_lexer(source)
+    sec_it = fio_config_parse(lexer_it, test_params)
+    sec_it = process_cycles(sec_it)
+    sec_it = process_repeats(sec_it)
+    return format_params_into_section_finall(sec_it)
 
 
-def to_bytes(sz):
-    sz = sz.lower()
-    try:
-        return int(sz)
-    except ValueError:
-        if sz[-1] == 'm':
-            return (1024 ** 2) * int(sz[:-1])
-        if sz[-1] == 'k':
-            return 1024 * int(sz[:-1])
-        if sz[-1] == 'g':
-            return (1024 ** 3) * int(sz[:-1])
-        raise
+def parse_and_slice_all_in_1(source, test_params, **slice_params):
+    sec_it = parse_all_in_1(source, test_params)
+    return slice_config(sec_it, **slice_params)
 
 
-def do_run_fio_fake(bconf):
-    def estimate_iops(sz, bw, lat):
-        return 1 / (lat + float(sz) / bw)
-    global count
-    count += 1
-    parsed_out = []
-
-    BW = 120.0 * (1024 ** 2)
-    LAT = 0.003
-
-    for name, cfg in bconf:
-        sz = to_bytes(cfg['blocksize'])
-        curr_lat = LAT * ((random.random() - 0.5) * 0.1 + 1)
-        curr_ulat = curr_lat * 1000000
-        curr_bw = BW * ((random.random() - 0.5) * 0.1 + 1)
-        iops = estimate_iops(sz, curr_bw, curr_lat)
-        bw = iops * sz
-
-        res = {'ctx': 10683,
-               'error': 0,
-               'groupid': 0,
-               'jobname': name,
-               'majf': 0,
-               'minf': 30,
-               'read': {'bw': 0,
-                        'bw_agg': 0.0,
-                        'bw_dev': 0.0,
-                        'bw_max': 0,
-                        'bw_mean': 0.0,
-                        'bw_min': 0,
-                        'clat': {'max': 0,
-                                 'mean': 0.0,
-                                 'min': 0,
-                                 'stddev': 0.0},
-                        'io_bytes': 0,
-                        'iops': 0,
-                        'lat': {'max': 0, 'mean': 0.0,
-                                'min': 0, 'stddev': 0.0},
-                        'runtime': 0,
-                        'slat': {'max': 0, 'mean': 0.0,
-                                 'min': 0, 'stddev': 0.0}
-                        },
-               'sys_cpu': 0.64,
-               'trim': {'bw': 0,
-                        'bw_agg': 0.0,
-                        'bw_dev': 0.0,
-                        'bw_max': 0,
-                        'bw_mean': 0.0,
-                        'bw_min': 0,
-                        'clat': {'max': 0,
-                                 'mean': 0.0,
-                                 'min': 0,
-                                 'stddev': 0.0},
-                        'io_bytes': 0,
-                        'iops': 0,
-                        'lat': {'max': 0, 'mean': 0.0,
-                                'min': 0, 'stddev': 0.0},
-                        'runtime': 0,
-                        'slat': {'max': 0, 'mean': 0.0,
-                                 'min': 0, 'stddev': 0.0}
-                        },
-               'usr_cpu': 0.23,
-               'write': {'bw': 0,
-                         'bw_agg': 0,
-                         'bw_dev': 0,
-                         'bw_max': 0,
-                         'bw_mean': 0,
-                         'bw_min': 0,
-                         'clat': {'max': 0, 'mean': 0,
-                                  'min': 0, 'stddev': 0},
-                         'io_bytes': 0,
-                         'iops': 0,
-                         'lat': {'max': 0, 'mean': 0,
-                                 'min': 0, 'stddev': 0},
-                         'runtime': 0,
-                         'slat': {'max': 0, 'mean': 0.0,
-                                  'min': 0, 'stddev': 0.0}
-                         }
-               }
-
-        if cfg['rw'] in ('read', 'randread'):
-            key = 'read'
-        elif cfg['rw'] in ('write', 'randwrite'):
-            key = 'write'
-        else:
-            raise ValueError("Uknown op type {0}".format(key))
-
-        res[key]['bw'] = bw
-        res[key]['iops'] = iops
-        res[key]['runtime'] = 30
-        res[key]['io_bytes'] = res[key]['runtime'] * bw
-        res[key]['bw_agg'] = bw
-        res[key]['bw_dev'] = bw / 30
-        res[key]['bw_max'] = bw * 1.5
-        res[key]['bw_min'] = bw / 1.5
-        res[key]['bw_mean'] = bw
-        res[key]['clat'] = {'max': curr_ulat * 10, 'mean': curr_ulat,
-                            'min': curr_ulat / 2, 'stddev': curr_ulat}
-        res[key]['lat'] = res[key]['clat'].copy()
-        res[key]['slat'] = res[key]['clat'].copy()
-
-        parsed_out.append(res)
-
-    return zip(parsed_out, bconf)
+def compile_all_in_1(source, test_params, **slice_params):
+    slices_it = parse_and_slice_all_in_1(source, test_params, **slice_params)
+    for slices in slices_it:
+        yield fio_config_to_str(slices)
 
 
-def do_run_fio(bconf):
-    benchmark_config = format_fio_config(bconf)
+def do_run_fio(config_slice):
+    benchmark_config = fio_config_to_str(config_slice)
     cmd = ["fio", "--output-format=json", "--alloc-size=262144", "-"]
     p = subprocess.Popen(cmd,
                          stdin=subprocess.PIPE,
@@ -414,91 +377,37 @@
         raw_out = raw_out[:100]
         raise ValueError(msg.format(raw_out, exc.message))
 
-    return zip(parsed_out, bconf)
-
-# limited by fio
-MAX_JOBS = 1000
+    return zip(parsed_out, config_slice)
 
 
-def next_test_portion(whole_conf, runcycle, cluster=False):
-    if cluster:
-        for name, sec in whole_conf:
-            if '_ramp_time' in sec:
-                sec['ramp_time'] = sec.pop('_ramp_time')
-            yield [(name, sec)]
-        return
-
-    jcount = 0
-    runtime = 0
-    bconf = []
-
-    for pos, (name, sec) in enumerate(whole_conf):
-        jc = int(sec.get('numjobs', '1'))
-
-        if runcycle is not None:
-            curr_task_time = calculate_execution_time([(name, sec)])
-        else:
-            curr_task_time = 0
-
-        if jc > MAX_JOBS:
-            err_templ = "Can't process job {0!r} - too large numjobs"
-            raise ValueError(err_templ.format(name))
-
-        if runcycle is not None and len(bconf) != 0:
-            rc_ok = curr_task_time + runtime <= runcycle
-        else:
-            rc_ok = True
-
-        if jc + jcount <= MAX_JOBS and rc_ok:
-            runtime += curr_task_time
-            jcount += jc
-            bconf.append((name, sec))
-            if '_ramp_time' in sec:
-                del sec['_ramp_time']
-            continue
-
-        assert len(bconf) != 0
-        yield bconf
-
-        if '_ramp_time' in sec:
-            sec['ramp_time'] = sec.pop('_ramp_time')
-            curr_task_time = calculate_execution_time([(name, sec)])
-
-        runtime = curr_task_time
-        jcount = jc
-        bconf = [(name, sec)]
-
-    if bconf != []:
-        yield bconf
-
-
-def add_job_results(jname, job_output, jconfig, res):
+def add_job_results(section, job_output, res):
     if job_output['write']['iops'] != 0:
         raw_result = job_output['write']
     else:
         raw_result = job_output['read']
 
-    if jname not in res:
+    vals = section.vals
+    if section.name not in res:
         j_res = {}
-        j_res["rw"] = jconfig["rw"]
-        j_res["sync_mode"] = get_test_sync_mode(jconfig)
-        j_res["concurence"] = int(jconfig.get("numjobs", 1))
-        j_res["blocksize"] = jconfig["blocksize"]
+        j_res["rw"] = vals["rw"]
+        j_res["sync_mode"] = get_test_sync_mode(vals)
+        j_res["concurence"] = int(vals.get("numjobs", 1))
+        j_res["blocksize"] = vals["blocksize"]
         j_res["jobname"] = job_output["jobname"]
-        j_res["timings"] = [int(jconfig.get("runtime", 0)),
-                            int(jconfig.get("ramp_time", 0))]
+        j_res["timings"] = [int(vals.get("runtime", 0)),
+                            int(vals.get("ramp_time", 0))]
     else:
-        j_res = res[jname]
-        assert j_res["rw"] == jconfig["rw"]
-        assert j_res["rw"] == jconfig["rw"]
-        assert j_res["sync_mode"] == get_test_sync_mode(jconfig)
-        assert j_res["concurence"] == int(jconfig.get("numjobs", 1))
-        assert j_res["blocksize"] == jconfig["blocksize"]
+        j_res = res[section.name]
+        assert j_res["rw"] == vals["rw"]
+        assert j_res["rw"] == vals["rw"]
+        assert j_res["sync_mode"] == get_test_sync_mode(vals)
+        assert j_res["concurence"] == int(vals.get("numjobs", 1))
+        assert j_res["blocksize"] == vals["blocksize"]
         assert j_res["jobname"] == job_output["jobname"]
 
         # ramp part is skipped for all tests, except first
-        # assert j_res["timings"] == (jconfig.get("runtime"),
-        #                             jconfig.get("ramp_time"))
+        # assert j_res["timings"] == (vals.get("runtime"),
+        #                             vals.get("ramp_time"))
 
     def j_app(name, x):
         j_res.setdefault(name, []).append(x)
@@ -509,65 +418,46 @@
     j_app("clat", raw_result["clat"]["mean"])
     j_app("slat", raw_result["slat"]["mean"])
 
-    res[jname] = j_res
+    res[section.name] = j_res
 
 
-def compile(benchmark_config, params, skip=0, runcycle=None, cluster=False):
-    whole_conf = list(parse_fio_config_full(benchmark_config, params))
-    whole_conf = whole_conf[skip:]
-    res = ""
-
-    for bconf in next_test_portion(whole_conf, runcycle, cluster=cluster):
-        res += format_fio_config(bconf)
-        res += "\n#" + "-" * 50 + "\n\n"
-
-    return res
-
-
-def run_fio(benchmark_config,
-            params,
-            runcycle=None,
-            raw_results_func=None,
-            skip_tests=0,
-            fake_fio=False,
-            cluster=False):
-
-    whole_conf = list(parse_fio_config_full(benchmark_config, params))
-    whole_conf = whole_conf[skip_tests:]
-    res = {}
-    curr_test_num = skip_tests
-    executed_tests = 0
+def run_fio(sliced_it, raw_results_func=None):
+    sliced_list = list(sliced_it)
     ok = True
+
     try:
-        for bconf in next_test_portion(whole_conf, runcycle, cluster=cluster):
+        curr_test_num = 0
+        executed_tests = 0
+        result = {}
 
-            if fake_fio:
-                res_cfg_it = do_run_fio_fake(bconf)
-            else:
-                res_cfg_it = do_run_fio(bconf)
-
+        for i, test_slice in enumerate(sliced_list):
+            res_cfg_it = do_run_fio(test_slice)
             res_cfg_it = enumerate(res_cfg_it, curr_test_num)
 
-            for curr_test_num, (job_output, (jname, jconfig)) in res_cfg_it:
+            for curr_test_num, (job_output, section) in res_cfg_it:
                 executed_tests += 1
+
                 if raw_results_func is not None:
                     raw_results_func(executed_tests,
-                                     [job_output, jname, jconfig])
+                                     [job_output, section])
 
-                assert jname == job_output["jobname"], \
-                    "{0} != {1}".format(jname, job_output["jobname"])
+                msg = "{0} != {1}".format(section.name, job_output["jobname"])
+                assert section.name == job_output["jobname"], msg
 
-                if jname.startswith('_'):
+                if section.name.startswith('_'):
                     continue
 
-                add_job_results(jname, job_output, jconfig, res)
+                add_job_results(section, job_output, result)
+
             curr_test_num += 1
             msg_template = "Done {0} tests from {1}. ETA: {2}"
-            exec_time = estimate_cfg(benchmark_config, params, curr_test_num)
 
-            print msg_template.format(curr_test_num - skip_tests,
-                                      len(whole_conf),
-                                      sec_to_str(exec_time))
+            rest = sliced_list[i:]
+            time_eta = sum(map(calculate_execution_time, rest))
+            test_left = sum(map(len, rest))
+            print msg_template.format(curr_test_num,
+                                      test_left,
+                                      sec_to_str(time_eta))
 
     except (SystemExit, KeyboardInterrupt):
         raise
@@ -578,7 +468,7 @@
         print "======== END OF ERROR ========="
         ok = False
 
-    return res, executed_tests, ok
+    return result, executed_tests, ok
 
 
 def run_benchmark(binary_tp, *argv, **kwargs):
@@ -606,11 +496,6 @@
         job_cfg += char
 
 
-def estimate_cfg(job_cfg, params, skip_tests=0):
-    bconf = list(parse_fio_config_full(job_cfg, params))[skip_tests:]
-    return calculate_execution_time(bconf)
-
-
 def sec_to_str(seconds):
     h = seconds // 3600
     m = (seconds % 3600) // 60
@@ -641,12 +526,6 @@
                         help="Max cycle length in seconds")
     parser.add_argument("--show-raw-results", action='store_true',
                         default=False, help="Output raw input and results")
-    parser.add_argument("--skip-tests", type=int, default=0, metavar="NUM",
-                        help="Skip NUM tests")
-    parser.add_argument("--faked-fio", action='store_true',
-                        default=False, help="Emulate fio with 0 test time")
-    parser.add_argument("--cluster", action='store_true',
-                        default=False, help="Apply cluster-test settings")
     parser.add_argument("--params", nargs="*", metavar="PARAM=VAL",
                         default=[],
                         help="Provide set of pairs PARAM=VAL to" +
@@ -674,22 +553,25 @@
         name, val = param_val.split("=", 1)
         params[name] = val
 
+    slice_params = {
+        'runcycle': argv_obj.runcycle,
+    }
+
+    sliced_it = parse_and_slice_all_in_1(job_cfg, params, **slice_params)
+
     if argv_obj.estimate:
-        print sec_to_str(estimate_cfg(job_cfg, params))
+        it = map(calculate_execution_time, sliced_it)
+        print sec_to_str(sum(it))
         return 0
 
     if argv_obj.num_tests or argv_obj.compile:
         if argv_obj.compile:
-            data = compile(job_cfg, params, argv_obj.skip_tests,
-                           cluster=argv_obj.cluster)
-            out_fd.write(data)
-            out_fd.write("\n")
+            for test_slice in sliced_it:
+                out_fd.write(fio_config_to_str(test_slice))
+                out_fd.write("\n#" + "-" * 70 + "\n\n")
 
         if argv_obj.num_tests:
-            bconf = list(parse_fio_config_full(job_cfg, params,
-                                               argv_obj.cluster))
-            bconf = bconf[argv_obj.skip_tests:]
-            print len(bconf)
+            print len(list(sliced_it))
 
         return 0
 
@@ -708,14 +590,7 @@
     rrfunc = raw_res_func if argv_obj.show_raw_results else None
 
     stime = time.time()
-    job_res, num_tests, ok = run_benchmark(argv_obj.type,
-                                           job_cfg,
-                                           params,
-                                           argv_obj.runcycle,
-                                           rrfunc,
-                                           argv_obj.skip_tests,
-                                           argv_obj.faked_fio,
-                                           cluster=argv_obj.cluster)
+    job_res, num_tests, ok = run_benchmark(argv_obj.type, sliced_it, rrfunc)
     etime = time.time()
 
     res = {'__meta__': {'raw_cfg': job_cfg, 'params': params}, 'res': job_res}