google / tcmalloc
File Size

The distribution of size of files (measured in lines of code).

Intro
  • File size measurements show the distribution of size of files.
  • Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
  • It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.
Learn more...
File Size Overall
  • There are 168 files with 36,508 lines of code.
    • 5 very long files (15,026 lines of code)
    • 5 long files (3,004 lines of code)
    • 28 medium size files (9,268 lines of codeclsfd_ftr_w_mp_ins)
    • 35 small files (5,344 lines of code)
    • 95 very small files (3,866 lines of code)
41% | 8% | 25% | 14% | 10%
Legend:
1001+
501-1000
201-500
101-200
1-100


explore: zoomable circles | sunburst | 3D view
File Size per Extension
1001+
501-1000
201-500
101-200
1-100
cc51% | 8% | 22% | 11% | 7%
h28% | 4% | 30% | 18% | 17%
S0% | 55% | 41% | 0% | 3%
proto0% | 0% | 0% | 100% | 0%
bzl0% | 0% | 0% | 82% | 17%
File Size per Logical Decomposition
primary
1001+
501-1000
201-500
101-200
1-100
tcmalloc/testing85% | 4% | 5% | 2% | 2%
tcmalloc23% | 9% | 36% | 17% | 12%
tcmalloc/internal16% | 9% | 28% | 27% | 18%
Longest Files (Top 50)
File# lines# units
empirical_distributions.cc
in tcmalloc/testing
 9558 10
tcmalloc.cc
in tcmalloc
 1978 51
huge_page_filler.h
in tcmalloc
 1451 87
percpu_tcmalloc.h
in tcmalloc/internal
 1025 35
cpu_cache.h
in tcmalloc
 1014 37
size_classes.cc
in tcmalloc
 670 -
experimental_pow2_below64_size_class.cc
in tcmalloc
 638 -
S
percpu_rseq_aarch64.S
in tcmalloc/internal
 593 -
transfer_cache_internals.h
in tcmalloc
 586 33
empirical_driver.cc
in tcmalloc/testing
 517 27
huge_page_aware_allocator.cc
in tcmalloc
 467 23
system-alloc.cc
in tcmalloc
 456 19
stats.cc
in tcmalloc
 446 22
guarded_page_allocator.cc
in tcmalloc
 443 30
S
percpu_rseq_x86_64.S
in tcmalloc/internal
 438 -
malloc_extension.cc
in tcmalloc
 414 39
huge_region.h
in tcmalloc
 394 33
page_heap.cc
in tcmalloc
 377 14
range_tracker.h
in tcmalloc/internal
 373 32
profile_builder.cc
in tcmalloc/internal
 364 9
huge_cache.cc
in tcmalloc
 343 19
mock_transfer_cache.h
in tcmalloc
 332 34
tcmalloc_benchmark.cc
in tcmalloc/testing
 330 14
range_tracker_benchmark.cc
in tcmalloc/internal
 328 16
transfer_cache.h
in tcmalloc
 326 40
span.h
in tcmalloc
 319 24
common.h
in tcmalloc
 317 18
lifetime_based_allocator.h
in tcmalloc
 311 28
thread_cache.cc
in tcmalloc
 287 15
pagemap.h
in tcmalloc
 286 22
huge_address_map.cc
in tcmalloc
 283 12
central_freelist.h
in tcmalloc
 261 16
huge_pages.h
in tcmalloc
 245 31
empirical.cc
in tcmalloc/testing
 243 17
percpu.h
in tcmalloc/internal
 237 17
common.cc
in tcmalloc
 221 5
pages.h
in tcmalloc
 221 18
malloc_extension.h
in tcmalloc
 206 1
proto
profile.proto
in tcmalloc/internal
 200 -
experimental_pow2_size_class.cc
in tcmalloc
 198 -
variants.bzl
in tcmalloc
 197 -
logging.cc
in tcmalloc/internal
 196 12
span.cc
in tcmalloc
 195 9
page_allocator.h
in tcmalloc
 194 11
lifetime_based_allocator.cc
in tcmalloc
 191 9
parameters.cc
in tcmalloc
 188 31
thread_cache.h
in tcmalloc
 183 13
lifetime_predictions.h
in tcmalloc/internal
 178 13
percpu.cc
in tcmalloc/internal
 178 12
stats.h
in tcmalloc
 178 12
Files With Most Units (Top 20)
File# lines# units
huge_page_filler.h
in tcmalloc
 1451 87
tcmalloc.cc
in tcmalloc
 1978 51
transfer_cache.h
in tcmalloc
 326 40
malloc_extension.cc
in tcmalloc
 414 39
cpu_cache.h
in tcmalloc
 1014 37
percpu_tcmalloc.h
in tcmalloc/internal
 1025 35
mock_transfer_cache.h
in tcmalloc
 332 34
huge_region.h
in tcmalloc
 394 33
transfer_cache_internals.h
in tcmalloc
 586 33
range_tracker.h
in tcmalloc/internal
 373 32
huge_pages.h
in tcmalloc
 245 31
parameters.cc
in tcmalloc
 188 31
guarded_page_allocator.cc
in tcmalloc
 443 30
lifetime_based_allocator.h
in tcmalloc
 311 28
tcmalloc_policy.h
in tcmalloc
 170 27
empirical_driver.cc
in tcmalloc/testing
 517 27
span.h
in tcmalloc
 319 24
huge_page_aware_allocator.cc
in tcmalloc
 467 23
linked_list.h
in tcmalloc/internal
 175 23
pagemap.h
in tcmalloc
 286 22
Files With Long Lines (Top 0)

There are 0 files with lines longer than 120 characters. In total, there are 0 long lines.

File# lines# units# long lines