They are in the form of "SESS6df8919ff2bffc5de8bcf0ad65f9dc0f=59f68e60a120de47c2cb5c98b010ffff"
Note how the thoughput stays in the 30-ish range from 100 to 400, although the response time climbs steeply. That might indicate that your Apache configuration is the main roadblock here, since that indicates that clients are waiting for a free Apache process to handle their request (I suppose you're using MPM_PREFORK)…
-- Kind regards, Mikkel Høgh <mikkel@xxxxxxxxx> On 14/10/2008, at 18.44, Ivan Sergio Borgonovo wrote:
BTW I hope someone may find good use of this: 2xXeon HT CPU 3.20GHz (not dual core), 4Gb RAM, RAID 5 SCSI * absolutely not tuned Apache * absolutely not tuned Drupal with little content, some blocks and some google adds (just CSS aggregation and caching enabled) * lightly tuned PostgreSQL 8.1 shared_buffers = 3500 work_mem = 32768 checkpoint_segments = 10 effective_cache_size = 15000 random_page_cost = 3 default_statistics_target = 30 siege -H "Cookie: drupalsessid" -c1 "localhost/d1" -b -t30s -c 1 Transactions: 485 hits Availability: 100.00 % Elapsed time: 29.95 secs Data transferred: 5.33 MB Response time: 0.06 secs Transaction rate: 16.19 trans/sec Throughput: 0.18 MB/sec Concurrency: 1.00 Successful transactions: 485 Failed transactions: 0 Longest transaction: 0.13 Shortest transaction: 0.06 -c 5 Transactions: 1017 hits Availability: 100.00 % Elapsed time: 29.61 secs Data transferred: 11.29 MB Response time: 0.15 secs Transaction rate: 34.35 trans/sec Throughput: 0.38 MB/sec Concurrency: 4.98 Successful transactions: 1017 Failed transactions: 0 Longest transaction: 0.24 Shortest transaction: 0.08 -c 20 Transactions: 999 hits Availability: 100.00 % Elapsed time: 30.11 secs Data transferred: 11.08 MB Response time: 0.60 secs Transaction rate: 33.18 trans/sec Throughput: 0.37 MB/sec Concurrency: 19.75 Successful transactions: 999 Failed transactions: 0 Longest transaction: 1.21 Shortest transaction: 0.10 -c 100 Transactions: 1085 hits Availability: 100.00 % Elapsed time: 29.97 secs Data transferred: 9.61 MB Response time: 2.54 secs Transaction rate: 36.20 trans/sec Throughput: 0.32 MB/sec Concurrency: 91.97 Successful transactions: 911 Failed transactions: 0 Longest transaction: 12.41 Shortest transaction: 0.07 -c 200 Transactions: 1116 hits Availability: 100.00 % Elapsed time: 30.02 secs Data transferred: 9.10 MB Response time: 4.85 secs Transaction rate: 37.18 trans/sec Throughput: 0.30 MB/sec Concurrency: 180.43 Successful transactions: 852 Failed transactions: 0 Longest transaction: 15.85 Shortest transaction: 0.25 -c 400 Transactions: 1133 hits Availability: 100.00 % Elapsed time: 29.76 secs Data transferred: 8.51 MB Response time: 6.98 secs Transaction rate: 38.07 trans/sec Throughput: 0.29 MB/sec Concurrency: 265.85 Successful transactions: 736 Failed transactions: 0 Longest transaction: 28.55 Shortest transaction: 0.00
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