• 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.

• There are 263 files with 48,399 lines of code.
• 11 very long files (18,847 lines of code)
• 9 long files (6,027 lines of code)
• 39 medium size files (12,831 lines of codeclsfd_ftr_w_mp_ins)
• 41 small files (5,833 lines of code)
• 163 very small files (4,861 lines of code)

There are 50 files with lines longer than 120 characters. In total, there are 173 long lines.

File	# lines	# units	# long lines
transaction.pb.go in model/modelpb	412	47	22
apmevent.pb.go in model/modelpb	483	43	14
stacktrace.pb.go in model/modelpb	317	36	13
cloud.pb.go in model/modelpb	255	29	12
span.pb.go in model/modelpb	522	64	12
http.pb.go in model/modelpb	309	35	8
traces.go in input/otlp	1203	25	7
experience.pb.go in model/modelpb	178	20	6
kubernetes.pb.go in model/modelpb	123	12	5
error.pb.go in model/modelpb	350	40	5
metricset.pb.go in model/modelpb	400	50	4
faas.pb.go in model/modelpb	150	15	4
container.pb.go in model/modelpb	131	13	4
message.pb.go in model/modelpb	138	13	4
agent.pb.go in model/modelpb	122	12	3
keyvalue.pb.go in model/modelpb	109	10	3
system.pb.go in model/modelpb	246	30	3
metrics.go in input/otlp	355	12	3
decoder.go in input/elasticapm/internal/modeldecoder/v2	1689	36	3
event.pb.go in model/modelpb	182	19	2
destination.pb.go in model/modelpb	106	10	2
useragent.pb.go in model/modelpb	106	10	2
datastream.pb.go in model/modelpb	115	11	2
observer.pb.go in model/modelpb	122	12	2
log.pb.go in model/modelpb	210	25	2
process.pb.go in model/modelpb	196	22	2
user.pb.go in model/modelpb	123	12	1
service.pb.go in model/modelpb	450	59	1
trace.pb.go in model/modelpb	98	9	1
headers.pb.go in model/modelpb	107	10	1
device.pb.go in model/modelpb	164	18	1
network.pb.go in model/modelpb	220	26	1
ip.pb.go in model/modelpb	106	10	1
source.pb.go in model/modelpb	166	18	1
code.pb.go in model/modelpb	101	9	1
host.pb.go in model/modelpb	153	15	1
url.pb.go in model/modelpb	154	16	1
os.pb.go in model/modelpb	130	13	1
client.pb.go in model/modelpb	117	11	1
session.pb.go in model/modelpb	106	10	1
labels.pb.go in model/modelpb	170	19	1
hostname.go in model/modelprocessor	29	2	1
groupingkey.go in model/modelprocessor	100	8	1
datastream.go in model/modelprocessor	135	7	1
testdata.go in input/elasticapm/internal/modeldecoder/modeldecodertest	53	2	1
interface.go in input/elasticapm/internal/modeldecoder/generator	52	1	1
main.go in input/elasticapm/internal/modeldecoder/generator/cmd	93	5	1
ninterface.go in input/elasticapm/internal/modeldecoder/generator	106	1	1
parser.go in input/elasticapm/internal/modeldecoder/generator	156	4	1
jsonschema.go in input/elasticapm/internal/modeldecoder/generator	284	9	1