-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Sumit,
On 7/15/19 08:05, Sumit Bhardwaj wrote: > On 7/12/19, Christopher Schultz wrote: >> Are you using JSSE or OpenSSL for crypto? > > JSSE. will there be any difference with openssl? Yes. Especially with some cipher suites, JSSE will use software-based crypto while OpenSSL will use hardware-acceleration. >> How are you measuring CPU usage? > using jconsole/jvisualvm > >> Have you tried to correlate that CPU usage with user-request >> load? > > I am not sure if I understood the question, but I ran similar load > for over a week on my app with only http, cpu usage was quite > less(<10%) for the whole week where as with https, it was 20% for a > day then jumped to 40% and then kept growing. So the CPU usage increases and never decreases? s it not to with actual active load? Can you please take a few thread dumps several seconds apart and find threads that seem to be hanging around without making any progress? >> Encryption isn't free, though modern CPUs are very good at >> optimizing it > > Is there a way to control/reduce the CPU usage by some > configuration changes? No. But it seems like either something is missing from your analysis or something is very wrong in your environment. Thanks, - -chris -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAl0svkwACgkQHPApP6U8 pFgh2Q/+Pntq6eICUHRZxDimtylPBTCC0Z81cIlK82nfuz7A1RQ72XEkrgU97WHb kOGgD/AGm9sWsM7X1r2knWrMtirty25F304igTPQt7e62VimOiKX1qauy9yWF7uX apqcSchGvqWUuTRcbW0enqV4LShCd1a1Nimtf92tIcDzuUmbfpCLZoZYMWAxliuD OY9O3iMiHtwcKBvbMIApqo7EdV7Mx4jJDUjBwgY+zw6/+prDQ77VHlW5/9EuAile oIHdd9qbK1Tp18gUYJg+RifzxuDn7hrEYK2xEEhSK3YajDAC3QUdB+jUdxZUC9oN CP5d/OGO0baQaCuhcXkAFfDKXjyz3oEIAZJ8Bhg1nGbESa9Xb/DZOhMgPfgy8fdr 11YxcLS7YhhemEs0ZR0oYtiGF4Bn8KpLW9CX0hKTA4ZYGcr61+BhobClOT0Atsoi JmB2MowL0FwhKrJiMTueQ8MR0a2wNgeV77yECcvxNxTPnMKg1IWFxQO3gJtsZcPF AcEFliWEnihezh1wZLZfCTGALKMtQwiJ5jCDsHX7CFCKNcBw2tnfsl+8EYIFfyj1 ZRtWVMvJ04+ADhKtWPLEmOTMecPATbpg9uUC1B5YqLT7ak6xarjZeHfKVRmcbazk 9WiEwZBiLhAgaz+o9b64KZQ7RuAGPxMxROZlDOydh7KVdf7QPxY= =+9SX -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
